2 John 1:2

because of the truth which lives in our hearts and will be with us forever:

John 15:7

If you remain in Me and My words remain in you [that is, if we are vitally united and My message lives in your heart], ask whatever you wish and it will be done for you.

1 Corinthians 9:23

And I do all this for the sake of the gospel, so that I may share in its blessings along with you.

2 Corinthians 4:5

For we do not preach ourselves, but Jesus Christ as Lord, and ourselves [merely] as your bond-servants for Jesus’ sake.

Colossians 3:16

Let the [spoken] word of Christ have its home within you [dwelling in your heart and mind—permeating every aspect of your being] as you teach [spiritual things] and admonish and train one another with all wisdom, singing psalms and hymns and spiritual songs with thankfulness in your hearts to God.

2 Timothy 1:5

I remember your sincere and unqualified faith [the surrendering of your entire self to God in Christ with confident trust in His power, wisdom and goodness, a faith] which first lived in [the heart of] your grandmother Lois and your mother Eunice, and I am confident that it is in you as well.

1 Peter 1:23-25

for you have been born again [that is, reborn from above—spiritually transformed, renewed, and set apart for His purpose] not of seed which is perishable but [from that which is] imperishable and immortal, that is, through the living and everlasting word of God.

2 Peter 1:12

Therefore, I will always be ready to remind you of these things, even though you already know them and are established in the truth which is held firmly in your grasp.

1 John 1:8

If we say we have no sin [refusing to admit that we are sinners], we delude ourselves and the truth is not in us. [His word does not live in our hearts.]

1 John 2:14

I have written to you, fathers, because you know Him who has existed from the beginning. I have written to you, young men, because you are strong and vigorous, and the word of God remains [always] in you, and you have been victorious over the evil one [by accepting Jesus as Savior].

1 John 2:17

The world is passing away, and with it its lusts [the shameful pursuits and ungodly longings]; but the one who does the will of God and carries out His purposes lives forever.

Treasury of Scripture Knowledge

Summary

For the truth's sake, which dwelleth in us, and shall be with us for ever.

Bible References

The truth's

1 Corinthians 9:23
And I do all this for the sake of the gospel, so that I may share in its blessings along with you.
2 Corinthians 4:5
For we do not preach ourselves, but Jesus Christ as Lord, and ourselves [merely] as your bond-servants for Jesus’ sake.

Which

John 15:7
If you remain in Me and My words remain in you [that is, if we are vitally united and My message lives in your heart], ask whatever you wish and it will be done for you.
Colossians 3:16
Let the [spoken] word of Christ have its home within you [dwelling in your heart and mind—permeating every aspect of your being] as you teach [spiritual things] and admonish and train one another with all wisdom, singing psalms and hymns and spiritual songs with thankfulness in your hearts to God.
2 Timothy 1:5
I remember your sincere and unqualified faith [the surrendering of your entire self to God in Christ with confident trust in His power, wisdom and goodness, a faith] which first lived in [the heart of] your grandmother Lois and your mother Eunice, and I am confident that it is in you as well.
1 Peter 1:23
for you have been born again [that is, reborn from above—spiritually transformed, renewed, and set apart for His purpose] not of seed which is perishable but [from that which is] imperishable and immortal, that is, through the living and everlasting word of God.
1 John 2:14
I have written to you, fathers, because you know Him who has existed from the beginning. I have written to you, young men, because you are strong and vigorous, and the word of God remains [always] in you, and you have been victorious over the evil one [by accepting Jesus as Savior].