1 Samuel 20:42

42 Jonathan said to David, “Go in peace, for we have sworn friendship with each other in the name of the LORD, saying, ‘The LORD is witness between you and me, and between your descendants and my descendants forever.’ ” Then David left, and Jonathan went back to the town.a

Read 1 Samuel 20:42 Using Other Translations

And Jonathan said to David, Go in peace, forasmuch as we have sworn both of us in the name of the LORD, saying, The LORD be between me and thee, and between my seed and thy seed for ever. And he arose and departed: and Jonathan went into the city.
Then Jonathan said to David, "Go in peace, because we have sworn both of us in the name of the LORD, saying, 'The LORD shall be between me and you, and between my offspring and your offspring, forever.'" And he rose and departed, and Jonathan went into the city.
At last Jonathan said to David, “Go in peace, for we have sworn loyalty to each other in the LORD ’s name. The LORD is the witness of a bond between us and our children forever.” Then David left, and Jonathan returned to the town.