Deuteronomy 31:7

And Moses called unto Joshua, and said unto him in the sight of all Israel, Be strong and of good courage: for thou shalt go with this people into the land which Jehovah hath sworn unto their fathers to give them; and thou shalt cause them to inherit it.

Deuteronomy 3:28

But charge Joshua, and encourage him, and strengthen him; for he shall go over before this people, and he shall cause them to inherit the land which thou shalt see.

Deuteronomy 1:38

Joshua the son of Nun, who standeth before thee, he shall go in thither: encourage thou him; for he shall cause Israel to inherit it.

Deuteronomy 31:6

Be strong and of good courage, fear not, nor be affrighted at them: for Jehovah thy God, he it is that doth go with thee; he will not fail thee, nor forsake thee.

Deuteronomy 31:3

Jehovah thy God, he will go over before thee; he will destroy these nations from before thee, and thou shalt dispossess them: and Joshua, he shall go over before thee, as Jehovah hath spoken.

Deuteronomy 31:23

And he gave Joshua the son of Nun a charge, and said, Be strong and of good courage; for thou shalt bring the children of Israel into the land which I sware unto them: and I will be with thee.

Joshua 1:6

Be strong and of good courage; for thou shalt cause this people to inherit the land which I sware unto their fathers to give them.

Daniel 10:19

And he said, O man greatly beloved, fear not: peace be unto thee, be strong, yea, be strong. And when he spake unto me, I was strengthened, and said, Let my lord speak; for thou hast strengthened me.

John 1:17

For the law was given through Moses; grace and truth came through Jesus Christ.

Ephesians 6:10

Finally, be strong in the Lord, and in the strength of his might.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

For thou must

Deuteronomy 31:3
Jehovah thy God, he will go over before thee; he will destroy these nations from before thee, and thou shalt dispossess them: and Joshua, he shall go over before thee, as Jehovah hath spoken.
Deuteronomy 1:38
Joshua the son of Nun, who standeth before thee, he shall go in thither: encourage thou him; for he shall cause Israel to inherit it.
Deuteronomy 3:28
But charge Joshua, and encourage him, and strengthen him; for he shall go over before this people, and he shall cause them to inherit the land which thou shalt see.
John 1:17
For the law was given through Moses; grace and truth came through Jesus Christ.

General references

Numbers 27:23
and he laid his hands upon him, and gave him a charge, as Jehovah spake by Moses.

American Standard Version Public Domain