1 Samuel 20:17
And Jonathan made David swear again by his love for him, for he loved him as he loved his own soul.
1 Samuel 18:1
As soon as he had finished speaking to Saul, the soul of Jonathan was knit 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 the wife you embrace or your friend who is as your own soul entices you secretly, saying, 'Let us go and serve other gods,'which neither you nor your fathers have known,
2 Samuel 1:26
I am distressed for you, my brother Jonathan; very pleasant have you been to me; your love to me was extraordinary, surpassing the love of women.
Proverbs 18:24
A man of many companions may come to ruin, but there is a friend who sticks closer than a brother.