Isaiah 56:4

For thus said Jehovah of the eunuchs, Who do keep My sabbaths, And have fixed on that which I desired, And are keeping hold on My covenant:

Joshua 24:15

and if wrong in your eyes to serve Jehovah -- choose for you to-day whom ye do serve; -- whether the gods whom your fathers served, which are beyond the River, or the gods of the Amorite in whose land ye are dwelling; and I and my house -- we serve Jehovah.'

2 Samuel 23:5

For -- not so is my house with God; For -- a covenant age-during He made with me, Arranged in all things, and kept; For -- all my salvation, and all desire, For -- He hath not caused it to spring up.

Psalm 119:111

I have inherited Thy testimonies to the age, For the joy of my heart are they.

Isaiah 27:5

Or -- he doth take hold on My strength, He doth make peace with Me, Peace he doth make with Me.

Isaiah 55:3

Incline your ear, and come unto me, Hear, and your soul doth live, And I make for you a covenant age-during, The kind acts of David -- that are stedfast.

Isaiah 56:2

O the happiness of a man who doth this, And of a son of man who keepeth hold on it, Keeping the sabbath from polluting it, And keeping his hand from doing any evil.

Isaiah 56:6

And sons of the stranger, who are joined to Jehovah, To serve Him, and to love the name of Jehovah, To be to Him for servants, Every keeper of the sabbath from polluting it, And those keeping hold on My covenant.

Jeremiah 50:5

To Zion they ask the way, Thitherward are their faces: Come in, and we are joined unto Jehovah, A covenant age-during -- not forgotten.

Luke 10:42

but of one thing there is need, and Mary the good part did choose, that shall not be taken away from her.'

Hebrews 6:17

in which God, more abundantly willing to shew to the heirs of the promise the immutability of his counsel, did interpose 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 wrong in your eyes to serve Jehovah -- choose for you to-day whom ye do serve; -- whether the gods whom your fathers served, which are beyond the River, or the gods of the Amorite in whose land ye are dwelling; and I and my house -- we serve Jehovah.'
Psalm 119:111
I have inherited Thy testimonies to the age, For the joy of my heart are they.
Luke 10:42
but of one thing there is need, and Mary the good part did choose, that shall not be taken away from her.'

Take hold

Isaiah 27:5
Or -- he doth take hold on My strength, He doth make peace with Me, Peace he doth make with Me.
Isaiah 55:3
Incline your ear, and come unto me, Hear, and your soul doth live, And I make for you a covenant age-during, The kind acts of David -- that are stedfast.
2 Samuel 23:5
For -- not so is my house with God; For -- a covenant age-during He made with me, Arranged in all things, and kept; For -- all my salvation, and all desire, For -- He hath not caused it to spring up.
Jeremiah 50:5
To Zion they ask the way, Thitherward are their faces: Come in, and we are joined unto Jehovah, A covenant age-during -- not forgotten.
Hebrews 6:17
in which God, more abundantly willing to shew to the heirs of the promise the immutability of his counsel, did interpose by an oath,

General references

Genesis 17:9
And God saith unto Abraham, 'And thou dost keep My covenant, thou and thy seed after thee, to their generations;
Exodus 20:8
'Remember the Sabbath-day to sanctify it;
Leviticus 25:45
and also of the sons of the settlers who are sojourning with you, of them ye buy, and of their families who are with you, which they have begotten in your land, and they have been to you for a possession;
Numbers 9:14
'And when a sojourner sojourneth with you, then he hath prepared a passover to Jehovah, according to the statute of the passover, and according to its ordinance, so he doth; one statute is to you, even to a sojourner, and to a native of the land.'
Deuteronomy 29:9
and ye have kept the words of this covenant, and done them, so that ye cause all that ye do to prosper.