1 Samuel 20:17
And Jonathan again made David swear an oath, because he loved him; for with the love of his soul he loved him.
1 Samuel 18:1
{When} he finished speaking to Saul, the soul of Jonathan became attached to the soul of David, and Jonathan loved him as his [own] soul.
1 Samuel 18:3
Then Jonathan made a covenant with David, because he loved him as his [own] soul.
Deuteronomy 13:6
"If your brother, the son of your mother or your son or your daughter {or your wife whom you embrace} or {your intimate friend} in secrecy {says}, 'Let us go and let us serve other gods!' [gods] that you and your ancestors have not known,
2 Samuel 1:26
{I am distressed} over you, my brother Jonathan. you [were] very dear to me; your love [was] more wonderful to me than the love of women.
Proverbs 18:24
A man of [many] friends will come to ruin, but there is a friend who sticks closer than a brother.