Deuteronomy 31:7

Then Moses sent for Joshua, and before the eyes of all Israel said to him, Be strong and take heart: for you are to go with this people into the land which the Lord, by his oath to their fathers, has given them; by your help they will take it for their heritage.

Deuteronomy 3:28

But give my orders to Joshua, comforting him and making him strong; for he is to go over Jordan at the head of this people, and he will give them this land which you will see for their heritage.

Deuteronomy 1:38

Joshua, the son of Nun, your servant, he will go into the land: say to him that he is to be strong, for he will be Israel's guide into their heritage.

Deuteronomy 31:6

Be strong and take heart, and have no fear of them: for it is the Lord your God who is going with you; he will not take away his help from you.

Deuteronomy 31:3

The Lord your God, he will go over before you; he will send destruction on all those nations, and you will take their land as your heritage: and Joshua will go over at your head as the Lord has said.

Deuteronomy 31:23

Then he gave orders to Joshua, the son of Nun, saying to him, Be strong and take heart: for you are to go at the head of the children of Israel into the land which I made an oath to give them; and I will be with you.

Joshua 1:6

Take heart and be strong; for you will give to this people for their heritage the land which I gave by an oath to their fathers.

Daniel 10:19

And he said to me, O man greatly loved, have no fear: peace be with you, be strong and let your heart be lifted up. And at his words I became strong, and said, Let my lord say on, for you have given me strength.

John 1:17

For the law was given through Moses; grace and the true way of life are ours through Jesus Christ.

Ephesians 6:10

Lastly, be strong in the Lord, and in the strength of his power.

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
The Lord your God, he will go over before you; he will send destruction on all those nations, and you will take their land as your heritage: and Joshua will go over at your head as the Lord has said.
Deuteronomy 1:38
Joshua, the son of Nun, your servant, he will go into the land: say to him that he is to be strong, for he will be Israel's guide into their heritage.
Deuteronomy 3:28
But give my orders to Joshua, comforting him and making him strong; for he is to go over Jordan at the head of this people, and he will give them this land which you will see for their heritage.
John 1:17
For the law was given through Moses; grace and the true way of life are ours through Jesus Christ.

General references

Numbers 27:23
And he put his hands on him and gave him his orders, as the Lord had said by Moses.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain