Joshua 1:7

Be strong and very courageous, that you may be careful to do according to all the Law, which Moses my servant commanded you. Do not turn from it to the right hand or to the left, that you may prosper wherever you go.

Deuteronomy 5:32

Be careful to do what Jehovah your God has commanded you. Never turn to the right or to the left.

Deuteronomy 28:14

and do not turn aside from any of the words I command you today, to the right or to the left, to go after other gods to serve them.

Joshua 11:15

Jehovah commanded Moses his servant and so Moses commands Joshua and Joshua complied. He left nothing undone of all that Jehovah commanded Moses.

Deuteronomy 29:9

Keep the words of this covenant to do them that you may prosper in all that you do.

Numbers 27:23

Moses put his hands on Joshua's head and proclaimed him as his successor, just as Jehovah proclaimed.

Deuteronomy 12:32

Be careful to do what I command you. Do not add to it nor take away from it.

Deuteronomy 31:7

Then Moses called Joshua and said to him in the presence of all the people of Israel: Be determined and with good courage. You are the one who will lead these people to occupy the land Jehovah promised to their ancestors.

Joshua 1:1

Moses the servant of Jehovah (YHWH) died. After his death Jehovah spoke to Joshua the son of Nun, Moses' minister, saying:

Joshua 1:8

This Book of the Law will not depart out of your mouth. You must meditate (intensely study) (think deeply) on it day and night, that you may observe to do according to all that is written in it. Then you will make your way prosperous, and then you will have good success.

1 Kings 2:3

Do what Jehovah your God orders you to do. Obey all his laws and commands, as written in the Law of Moses. That way wherever you go you may prosper in everything you do.

1 Chronicles 22:13

You will have success if you are careful to observe the decrees and laws that Jehovah gave Moses for Israel. Be strong and courageous. Do not be afraid or discouraged.

Proverbs 4:27

Do not turn to the right or to the left. Remove your foot from evil.

Proverbs 8:20

I lead in the way of righteousness, in the midst of the paths of judgment:

Treasury of Scripture Knowledge

Summary

Only be thou strong and very courageous, that thou mayest observe to do according to all the law, which Moses my servant commanded thee: turn not from it to the right hand or to the left, that thou mayest prosper whithersoever thou goest.

Bible References

Which moses

Joshua 1:1
Moses the servant of Jehovah (YHWH) died. After his death Jehovah spoke to Joshua the son of Nun, Moses' minister, saying:
Joshua 11:15
Jehovah commanded Moses his servant and so Moses commands Joshua and Joshua complied. He left nothing undone of all that Jehovah commanded Moses.
Numbers 27:23
Moses put his hands on Joshua's head and proclaimed him as his successor, just as Jehovah proclaimed.
Deuteronomy 31:7
Then Moses called Joshua and said to him in the presence of all the people of Israel: Be determined and with good courage. You are the one who will lead these people to occupy the land Jehovah promised to their ancestors.

Turn not

Deuteronomy 5:32
Be careful to do what Jehovah your God has commanded you. Never turn to the right or to the left.
Deuteronomy 12:32
Be careful to do what I command you. Do not add to it nor take away from it.
Deuteronomy 28:14
and do not turn aside from any of the words I command you today, to the right or to the left, to go after other gods to serve them.
Proverbs 4:27
Do not turn to the right or to the left. Remove your foot from evil.
Proverbs 8:20
I lead in the way of righteousness, in the midst of the paths of judgment:

That

Deuteronomy 29:9
Keep the words of this covenant to do them that you may prosper in all that you do.
1 Kings 2:3
Do what Jehovah your God orders you to do. Obey all his laws and commands, as written in the Law of Moses. That way wherever you go you may prosper in everything you do.
1 Chronicles 22:13
You will have success if you are careful to observe the decrees and laws that Jehovah gave Moses for Israel. Be strong and courageous. Do not be afraid or discouraged.

General references

Deuteronomy 4:2
He is your God. I am telling you everything he has commanded. So do not add anything or take anything away.
Deuteronomy 15:5
He will bless you only if you listen carefully to Jehovah your God and faithfully obey all these commandments I give you today.
Deuteronomy 29:9
Keep the words of this covenant to do them that you may prosper in all that you do.
Joshua 10:8
Jehovah said to Joshua: Do not fear them. I have delivered them into your hands. Not one man of them will stand before you.
Psalm 119:4
You have ordained your precepts that we should keep them diligently.