Isaiah 56:4

For thus has the LORD said unto the eunuchs that keep my sabbaths, and choose the things that please me, and take hold of my covenant;

Joshua 24:15

And if it seems evil unto you to serve the LORD, choose you this day whom ye will serve, whether the gods which your fathers served that were on the other side of the river or the gods of the Amorites, in whose land ye dwell; but as for me and my house, we will serve the LORD.

2 Samuel 23:5

shall not my house be so with God, although all my saving health and my desire shall not be produced yet? For he has made an everlasting covenant with me, ordered in all things, and it shall be kept;

Psalm 119:111

I have taken thy testimonies as a heritage for ever; for they are the rejoicing of my heart.

Isaiah 27:5

Or who shall take hold of my strength? Make peace with me, yea, make peace with me.

Isaiah 55:3

Incline your ear, and come unto me: hear, and your soul shall live; and I will make an eternal covenant with you, even the sure mercies of David.

Isaiah 56:2

Blessed is the man that does this, and the son of man that lays hold on it; that keeps from polluting the sabbath, and keeps his hand from doing any evil.

Isaiah 56:6

Also the sons of the stranger, that join themselves to the LORD, to serve him, and that love the name of the LORD, to be his slaves, every one that keeps from polluting the sabbath, and takes hold of my covenant;

Jeremiah 50:5

They shall ask the way to Zion, unto where they shall turn their faces, saying, Come, and let us join ourselves to the LORD in an eternal covenant that shall never be forgotten.

Luke 10:42

but only one thing is necessary, and Mary has chosen that good part, which shall not be taken away from her.

Hebrews 6:17

In which God, desiring to show more abundantly unto the heirs of promise the immutability of his counsel, confirmed it by an oath,

Treasury of Scripture Knowledge

Summary

For thus saith the LORD unto the eunuchs that keep my sabbaths, and choose the things that please me, and take hold of my covenant;

Bible References

Choose

Joshua 24:15
And if it seems evil unto you to serve the LORD, choose you this day whom ye will serve, whether the gods which your fathers served that were on the other side of the river or the gods of the Amorites, in whose land ye dwell; but as for me and my house, we will serve the LORD.
Psalm 119:111
I have taken thy testimonies as a heritage for ever; for they are the rejoicing of my heart.
Luke 10:42
but only one thing is necessary, and Mary has chosen that good part, which shall not be taken away from her.

Take hold

Isaiah 27:5
Or who shall take hold of my strength? Make peace with me, yea, make peace with me.
Isaiah 55:3
Incline your ear, and come unto me: hear, and your soul shall live; and I will make an eternal covenant with you, even the sure mercies of David.
2 Samuel 23:5
shall not my house be so with God, although all my saving health and my desire shall not be produced yet? For he has made an everlasting covenant with me, ordered in all things, and it shall be kept;
Jeremiah 50:5
They shall ask the way to Zion, unto where they shall turn their faces, saying, Come, and let us join ourselves to the LORD in an eternal covenant that shall never be forgotten.
Hebrews 6:17
In which God, desiring to show more abundantly unto the heirs of promise the immutability of his counsel, confirmed it by an oath,

General references

Genesis 17:9
And God said again unto Abraham, Thou shalt keep my covenant therefore, thou and thy seed after thee in their generations.
Exodus 20:8
Thou shalt remember the sabbath day, to sanctify it.
Leviticus 25:45
Ye may also buy of the children of the strangers that live among you and of those of their lineage that are born in your land, who are with you, and they shall be your possession.
Numbers 9:14
And if a stranger shall sojourn among you and will keep the passover unto the LORD; according to the ordinance of the passover and according to the laws thereof, so shall he do; ye shall have one ordinance, both for the stranger and for the natural of the land.
Deuteronomy 29:9
Thou shalt keep, therefore, the words of this covenant and do them that ye may understand all that ye do.