1 Samuel 23:18

And they make a covenant both of them before Jehovah; and David abideth in the forest, and Jonathan hath gone to his house.

1 Samuel 18:3

And Jonathan maketh -- also David -- a covenant, because he loveth him as his own soul,

1 Samuel 20:42

and Jonathan saith to David, 'Go in peace, in that we have sworn -- we two -- in the name of Jehovah, saying, Jehovah is between me and thee, and between my seed and thy seed -- unto the age;' and he riseth and goeth; and Jonathan hath gone in to the city.

2 Samuel 21:7

and the king hath pity on Mephibosheth son of Jonathan, son of Saul, because of the oath of Jehovah that is between them, between David and Jonathan son of Saul;

2 Samuel 9:1

And David saith, 'Is there yet any left to the house of Saul, and I do with him kindness because of Jonathan?'

1 Samuel 20:12-17

And Jonathan saith unto David, 'Jehovah, God of Israel -- when I search my father, about this time to-morrow or the third day, and lo, good is towards David, and I do not then send unto thee, and have uncovered thine ear --

Treasury of Scripture Knowledge

Summary

And they two made a covenant before the LORD: and David abode in the wood, and Jonathan went to his house.

Bible References

General references

1 Samuel 18:3
And Jonathan maketh -- also David -- a covenant, because he loveth him as his own soul,
1 Samuel 20:12
And Jonathan saith unto David, 'Jehovah, God of Israel -- when I search my father, about this time to-morrow or the third day, and lo, good is towards David, and I do not then send unto thee, and have uncovered thine ear --
2 Samuel 9:1
And David saith, 'Is there yet any left to the house of Saul, and I do with him kindness because of Jonathan?'
2 Samuel 21:7
and the king hath pity on Mephibosheth son of Jonathan, son of Saul, because of the oath of Jehovah that is between them, between David and Jonathan son of Saul;