1 Samuel 18:3

3 Jonathan swore eternal friendship with David because of his deep affection for him.

1 Samuel 18:3 Meaning and Commentary

1 Samuel 18:3

Then Jonathan and David made a covenant
A covenant of friendship; entered into a solemn agreement to keep up and maintain a cordial respect to each other, and to support each other's interest both in life and after death, whoever was the survivor; and in consequence of this David had a friend at court, when Saul fell out with him, and who pleaded his cause, and discovered his father's plots, and was the means of preserving David's life:

because he loved him as his own soul;
so that this covenant was not founded in mere words, but in sincere and cordial affection, and was lasting and inviolable.

1 Samuel 18:3 In-Context

1 Saul and David finished their conversation. After that, Saul's son Jonathan was deeply attracted to David and came to love him as much as he loved himself.
2 Saul kept David with him from that day on and did not let him go back home.
3 Jonathan swore eternal friendship with David because of his deep affection for him.
4 He took off the robe he was wearing and gave it to David, together with his armor and also his sword, bow, and belt.
5 David was successful in all the missions on which Saul sent him, and so Saul made him an officer in his army. This pleased all of Saul's officers and men.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.