1 Chronicles 28:20

And David said to Solomon his son, "Harden thyself and be strong and do it. Fear not, nor let thine heart discourage thee. For the LORD my God is with thee, and shall not leave thee nor forsake thee, until thou hast finished all the work that must serve for the house of the LORD.

1 Chronicles 22:13

For then thou shalt prosper: If thou shalt be diligent to do the ordinances and laws which the LORD charged Moses with, to deliver to Israel. Pluck up thine heart and be strong, dread not, nor be discouraged.

Hebrews 13:5

Let your conversation be without covetousness, and be content with that ye have already. For he verily said, "I will not fail thee, neither forsake thee."

Deuteronomy 31:7-8

And Moses called unto Joshua, and said unto him in the sight of all Israel, "Be strong and bold, for thou must go with this people unto the land which the LORD hath sworn unto their fathers to give them, and thou shalt give it them to inherit.

Joshua 1:5-9

There shall not a man be able to withstand thee all the days of thy life. For as I was with Moses, so will I be with thee and will neither leave thee, nor forsake thee.

1 Chronicles 28:10

Take heed now, for the LORD hath chosen thee, to build a house of thy sanctuary. Be strong and do it."

Psalm 27:1-2

{A Psalm of David} The LORD is my light and my salvation; whom then should I fear? The LORD is the strength of my life; of whom then shall I be afraid?

Isaiah 41:10

Be not afraid, for I will be with thee. Look not behind thee, for I will be thy God, to strengthen thee, help thee, and to keep thee with this righthand of mine.

Isaiah 41:13

For I, thy LORD and God, will strengthen thy righthand. Even I that say unto thee, 'Fear not,' I will help thee.

Romans 8:31

What shall we then say unto these things? if God be on our side: who can be against us?

1 Corinthians 16:13

Watch ye, stand fast in the faith, quit you like men, and 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
{A Psalm of David} The LORD is my light and my salvation; whom then should I fear? The LORD is the strength of my life; of whom then shall I be afraid?
Isaiah 41:10
Be not afraid, for I will be with thee. Look not behind thee, for I will be thy God, to strengthen thee, help thee, and to keep thee with this righthand of mine.
Romans 8:31
What shall we then say unto these things? if God be on our side: who can be against us?

He will not fail thee

Joshua 1:5
There shall not a man be able to withstand thee all the days of thy life. For as I was with Moses, so will I be with thee and will neither leave thee, nor forsake thee.
Hebrews 13:5
Let your conversation be without covetousness, and be content with that ye have already. For he verily said, "I will not fail thee, neither forsake thee."