Luke 22:32

and I besought for thee, that thy faith may not fail; and thou, when thou didst turn, strengthen thy brethren.'

John 21:15-17

When, therefore, they dined, Jesus saith to Simon Peter, 'Simon, son of Jonas, dost thou love me more than these?' he saith to him, 'Yes, Lord; thou hast known that I dearly love thee;' he saith to him, 'Feed my lambs.'

Romans 8:34

who is he that is condemning? Christ is He that died, yea, rather also, was raised up; who is also on the right hand of God -- who also doth intercede for us.

Psalm 32:3-6

When I have kept silence, become old have my bones, Through my roaring all the day.

Psalm 51:12-13

Restore to me the joy of Thy salvation, And a willing spirit doth sustain me.

Zechariah 3:2-4

And Jehovah saith unto the Adversary: 'Jehovah doth push against thee, O Adversary, Yea, push against thee doth Jehovah, Who is fixing on Jerusalem, Is not this a brand delivered from fire?'

Matthew 18:3

and said, 'Verily I say to you, if ye may not be turned and become as the children, ye may not enter into the reign of the heavens;

Matthew 26:75

and Peter remembered the saying of Jesus, he having said to him -- 'Before cock-crowing, thrice thou wilt deny me;' and having gone without, he did weep bitterly.

Mark 14:72

and a second time a cock crew, and Peter remembered the saying that Jesus said to him -- 'Before a cock crow twice, thou mayest deny me thrice;' and having thought thereon -- he was weeping.

Mark 16:7

and go, say to his disciples, and Peter, that he doth go before you to Galilee; there ye shall see him, as he said to you.'

Luke 8:13

'And those upon the rock: They who, when they may hear, with joy do receive the word, and these have no root, who for a time believe, and in time of temptation fall away.

Luke 22:61-62

And the Lord having turned did look on Peter, and Peter remembered the word of the Lord, how he said to him -- 'Before a cock shall crow, thou mayest disown me thrice;'

John 14:19

yet a little, and the world doth no more behold me, and ye behold me, because I live, and ye shall live;

John 17:9-11

'I ask in regard to them; not in regard to the world do I ask, but in regard to those whom Thou hast given to me, because Thine they are,

John 17:15-21

I do not ask that Thou mayest take them out of the world, but that Thou mayest keep them out of the evil.

Acts 3:19

reform ye, therefore, and turn back, for your sins being blotted out, that times of refreshing may come from the presence of the Lord,

Romans 5:9-10

much more, then, having been declared righteous now in his blood, we shall be saved through him from the wrath;

Romans 8:32

He who indeed His own Son did not spare, but for us all did deliver him up, how shall He not also with him the all things grant to us?

2 Corinthians 1:4-6

who is comforting us in all our tribulation, for our being able to comfort those in any tribulation through the comfort with which we are comforted ourselves by God;

1 Timothy 1:13-16

who before was speaking evil, and persecuting, and insulting, but I found kindness, because, being ignorant, I did it in unbelief,

2 Timothy 2:18

who concerning the truth did swerve, saying the rising again to have already been, and do overthrow the faith of some;

Titus 1:1

Paul, a servant of God, and an apostle of Jesus Christ, according to the faith of the choice ones of God, and an acknowledging of truth that is according to piety,

Hebrews 7:25

whence also he is able to save to the very end, those coming through him unto God -- ever living to make intercession for them.

Hebrews 12:12-13

Wherefore, the hanging-down hands and the loosened knees set ye up;

Hebrews 12:15

looking diligently over lest any one be failing of the grace of God, lest any root of bitterness springing up may give trouble, and through this many may be defiled;

1 Peter 1:1

Peter, an apostle of Jesus Christ, to the choice sojourners of the dispersion of Pontus, Galatia, Cappadocia, Asia, and Bithynia,

1 Peter 1:5

who, in the power of God are being guarded, through faith, unto salvation, ready to be revealed in the last time,

1 Peter 1:13

Wherefore having girded up the loins of your mind, being sober, hope perfectly upon the grace that is being brought to you in the revelation of Jesus Christ,

1 Peter 5:8-10

Be sober, vigilant, because your opponent the devil, as a roaring lion, doth walk about, seeking whom he may swallow up,

2 Peter 1:10-12

wherefore, the rather, brethren, be diligent to make stedfast your calling and choice, for these things doing, ye may never stumble,

2 Peter 3:14

wherefore, beloved, these things waiting for, be diligent, spotless and unblameable, by Him to be found in peace,

2 Peter 3:17-18

Ye, then, beloved, knowing before, take heed, lest, together with the error of the impious being led away, ye may fall from your own stedfastness,

1 John 2:1-2

My little children, these things I write to you, that ye may not sin: and if any one may sin, an advocate we have with the Father, Jesus Christ, a righteous one,

1 John 2:19

out of us they went forth, but they were not of us, for if they had been of us, they would have remained with us; but -- that they might be manifested that they are not all of us.

Treasury of Scripture Knowledge

Summary

But I have prayed for thee, that thy faith fail not: and when thou art converted, strengthen thy brethren.

Bible References

I have

Zechariah 3:2
And Jehovah saith unto the Adversary: 'Jehovah doth push against thee, O Adversary, Yea, push against thee doth Jehovah, Who is fixing on Jerusalem, Is not this a brand delivered from fire?'
John 14:19
yet a little, and the world doth no more behold me, and ye behold me, because I live, and ye shall live;
John 17:9
'I ask in regard to them; not in regard to the world do I ask, but in regard to those whom Thou hast given to me, because Thine they are,
Romans 5:9
much more, then, having been declared righteous now in his blood, we shall be saved through him from the wrath;
Romans 8:32
He who indeed His own Son did not spare, but for us all did deliver him up, how shall He not also with him the all things grant to us?
Hebrews 7:25
whence also he is able to save to the very end, those coming through him unto God -- ever living to make intercession for them.
1 Peter 1:5
who, in the power of God are being guarded, through faith, unto salvation, ready to be revealed in the last time,
1 John 2:1
My little children, these things I write to you, that ye may not sin: and if any one may sin, an advocate we have with the Father, Jesus Christ, a righteous one,

Thy faith

Luke 8:13
'And those upon the rock: They who, when they may hear, with joy do receive the word, and these have no root, who for a time believe, and in time of temptation fall away.
2 Timothy 2:18
who concerning the truth did swerve, saying the rising again to have already been, and do overthrow the faith of some;
Titus 1:1
Paul, a servant of God, and an apostle of Jesus Christ, according to the faith of the choice ones of God, and an acknowledging of truth that is according to piety,
Hebrews 12:15
looking diligently over lest any one be failing of the grace of God, lest any root of bitterness springing up may give trouble, and through this many may be defiled;
1 Peter 1:1
Peter, an apostle of Jesus Christ, to the choice sojourners of the dispersion of Pontus, Galatia, Cappadocia, Asia, and Bithynia,
1 John 2:19
out of us they went forth, but they were not of us, for if they had been of us, they would have remained with us; but -- that they might be manifested that they are not all of us.

And when

Luke 22:61
And the Lord having turned did look on Peter, and Peter remembered the word of the Lord, how he said to him -- 'Before a cock shall crow, thou mayest disown me thrice;'
Matthew 18:3
and said, 'Verily I say to you, if ye may not be turned and become as the children, ye may not enter into the reign of the heavens;
Matthew 26:75
and Peter remembered the saying of Jesus, he having said to him -- 'Before cock-crowing, thrice thou wilt deny me;' and having gone without, he did weep bitterly.
Mark 14:72
and a second time a cock crew, and Peter remembered the saying that Jesus said to him -- 'Before a cock crow twice, thou mayest deny me thrice;' and having thought thereon -- he was weeping.
Mark 16:7
and go, say to his disciples, and Peter, that he doth go before you to Galilee; there ye shall see him, as he said to you.'
Acts 3:19
reform ye, therefore, and turn back, for your sins being blotted out, that times of refreshing may come from the presence of the Lord,

General references

2 Samuel 10:11
And he saith, 'If Aram be stronger than I, then thou hast been to me for salvation, and if the Bene-Ammon be stronger than thou, then I have come to give salvation to thee;
Isaiah 35:3
Strengthen ye the feeble hands, Yea, the stumbling knees strengthen.
Mark 5:12
and all the demons did call upon him, saying, 'Send us to the swine, that into them we may enter;'
John 20:6
Simon Peter, therefore, cometh, following him, and he entered into the tomb, and beholdeth the linen clothes lying,