1 Chronicles 28:20

And David saith to Solomon his son, 'Be strong, and courageous, and do; do not fear nor be affrighted, for Jehovah God, my God, is with thee; He doth not fail thee, nor forsake thee, unto the completion of all the work of the service of the house of Jehovah.

1 Chronicles 22:13

then thou dost prosper, if thou dost observe to do the statutes and the judgments that Jehovah charged Moses with concerning Israel; be strong and courageous; do not fear, nor be cast down.

Hebrews 13:5

Without covetousness the behaviour, being content with the things present, for He hath said, 'No, I will not leave, no, nor forsake thee,'

Deuteronomy 31:7-8

And Moses calleth for Joshua, and saith unto him before the eyes of all Israel, 'Be strong and courageous, for thou -- thou dost go in with this people unto the land which Jehovah hath sworn to their fathers to give to them, and thou -- thou dost cause them to inherit it;

Joshua 1:5-9

'No man doth station himself before thee all days of thy life; as I have been with Moses, I am with thee, I do not fail thee, nor forsake thee;

1 Chronicles 28:10

See, now, for Jehovah hath fixed on thee to build a house for a sanctuary; be strong, and do.'

Psalm 27:1-2

By David. Jehovah is my light and my salvation, Whom do I fear? Jehovah is the strength of my life, Of whom am I afraid?

Isaiah 41:10

Be not afraid, for with thee I am, Look not around, for I am thy God, I have strengthened thee, Yea, I have helped thee, yea, I upheld thee, With the right hand of My righteousness.

Isaiah 41:13

For I, Jehovah thy God, Am strengthening thy right hand, He who is saying to thee, 'Fear not, I have helped thee.'

Romans 8:31

What, then, shall we say unto these things? if God is for us, who is against us?

1 Corinthians 16:13

Watch ye, stand in the faith; be men, be strong;

Treasury of Scripture Knowledge

Summary

And David said to Solomon his son, Be strong and of good courage, and do it: fear not, nor be dismayed: for the LORD God, even my God, will be with thee; he will not fail thee, nor forsake thee, until thou hast finished all the work for the service of the house of the LORD.

He will not fail thee

Bible References

Fear not

Psalm 27:1
By David. Jehovah is my light and my salvation, Whom do I fear? Jehovah is the strength of my life, Of whom am I afraid?
Isaiah 41:10
Be not afraid, for with thee I am, Look not around, for I am thy God, I have strengthened thee, Yea, I have helped thee, yea, I upheld thee, With the right hand of My righteousness.
Romans 8:31
What, then, shall we say unto these things? if God is for us, who is against us?

He will not fail thee

Joshua 1:5
'No man doth station himself before thee all days of thy life; as I have been with Moses, I am with thee, I do not fail thee, nor forsake thee;
Hebrews 13:5
Without covetousness the behaviour, being content with the things present, for He hath said, 'No, I will not leave, no, nor forsake thee,'