Joshua 23:6

So be very strong to keep and do whatever is recorded in the book of the law of Moses, not turning away from it to the right or to the left;

Deuteronomy 5:32

Take care, then, to do whatever the Lord your God has given you orders to do; let there be no turning away to the right hand or to the left.

Deuteronomy 28:14

Not turning away from any of the orders which I give you today, to the right hand or to the left, or going after any other gods to give them worship.

Deuteronomy 12:32

You are to keep with care all the words I give you, making no addition to them and taking nothing from them.

Deuteronomy 17:20

So that his heart may not be lifted up over his countrymen, and he may not be turned away from the orders, to one side or the other: but that his life and the lives of his children may be long in his kingdom in Israel.

Joshua 1:7-9

Only take heart and be very strong; take care to do all the law which Moses my servant gave you, not turning from it to the right hand or to the left, so that you may do well in all your undertakings.

Proverbs 4:26-27

Keep a watch on your behaviour; let all your ways be rightly ordered.

Jeremiah 9:3

Their tongues are bent like a bow to send out false words: they have become strong in the land, but not for good faith: they go on from evil to evil, and they have no knowledge of me, says the Lord.

1 Corinthians 16:13

Be on the watch, unmoved in the faith, and be strong like men.

Ephesians 6:10-19

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

Hebrews 12:4

Till now you have not given your blood in your fight against sin:

Revelation 21:8

But those who are full of fear and without faith, the unclean and takers of life, those who do the sins of the flesh, and those who make use of evil powers or who give worship to images, and all those who are false, will have their part in the sea of ever-burning fire which is the second death.

Treasury of Scripture Knowledge

Summary

Be ye therefore very courageous to keep and to do all that is written in the book of the law of Moses, that ye turn not aside therefrom to the right hand or to the left;

Bible References

Very

Joshua 1:7
Only take heart and be very strong; take care to do all the law which Moses my servant gave you, not turning from it to the right hand or to the left, so that you may do well in all your undertakings.
Jeremiah 9:3
Their tongues are bent like a bow to send out false words: they have become strong in the land, but not for good faith: they go on from evil to evil, and they have no knowledge of me, says the Lord.
1 Corinthians 16:13
Be on the watch, unmoved in the faith, and be strong like men.
Ephesians 6:10
Lastly, be strong in the Lord, and in the strength of his power.
Hebrews 12:4
Till now you have not given your blood in your fight against sin:
Revelation 21:8
But those who are full of fear and without faith, the unclean and takers of life, those who do the sins of the flesh, and those who make use of evil powers or who give worship to images, and all those who are false, will have their part in the sea of ever-burning fire which is the second death.

That ye

Deuteronomy 5:32
Take care, then, to do whatever the Lord your God has given you orders to do; let there be no turning away to the right hand or to the left.
Deuteronomy 12:32
You are to keep with care all the words I give you, making no addition to them and taking nothing from them.
Deuteronomy 17:20
So that his heart may not be lifted up over his countrymen, and he may not be turned away from the orders, to one side or the other: but that his life and the lives of his children may be long in his kingdom in Israel.
Deuteronomy 28:14
Not turning away from any of the orders which I give you today, to the right hand or to the left, or going after any other gods to give them worship.
Proverbs 4:26
Keep a watch on your behaviour; let all your ways be rightly ordered.

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