New Revised Standard Version
When David had finished speaking to Saul, the soul of Jonathan was bound to the soul of David, and Jonathan loved him as his own soul.

Contemporary English Version
David and Saul finished talking, and soon David and Jonathan became best friends. Jonathan thought as much of David as he did of himself.

New American Bible
By the time David finished speaking with Saul, Jonathan’s life became bound up with David’s life; he loved him as his very self.

Douay-Rheims Bible
And it came to pass, when he had made an end of speaking to Saul, the son of Jonathan was knit with the soul of David, and Jonathan loved him as his own soul.

And it came to pass, when he had made an end of speaking to Saul, the son of Jonathan was knit with the soul of David, and Jonathan loved him as his own soul.

1 Samuel 14:1-14,45 Now it came to pass one day that Jonathan, the son of Saul, said to the young man that bore his armour: Come, and let us go over to the garrison of the Philistines, which is on the other side of yonder place. But he told not this to his father. . . .

Genesis 44:30 Therefore, if I shall go to thy servant, our father, and the boy be wanting, (whereas his life dependeth upon the life of him,)

Judges 20:11 And all Israel were gathered together against the city, as one man, with one mind, and one counsel:

1 Chronicles 12:17 And David went out to meet them, and said: If you are come peaceably to me to help me, let my heart be joined to you: but if you plot against me for my enemies whereas I have no iniquity in my hands, let the God of our fathers see, and judge.

Psalm 86:11 Conduct me, O Lord, in thy way, and I will walk in thy truth: let my heart rejoice that it may fear thy name.

Colossians 2:2 That their hearts may be comforted, being instructed in charity and unto all riches of fulness of understanding, unto the knowledge of the mystery of God the Father and of Christ Jesus:

loved him

2 Samuel 18:3 And the people answered: Thou shalt not go forth: for if we flee away, they will not much mind us: or if half of us should fall, they will not greatly care: for thou alone art accounted for ten thousand: it is better therefore that thou shouldst be in the city to succour us.

2 Samuel 19:2 And the victory that day was turned into mourning unto all the people: for the people heard say that day: The king grieveth for his son.

2 Samuel 20:17 And when he was come near to her, she said to him: Art thou Joab? And he answered: I am. And she spoke thus to him: Hear the words of thy handmaid. He answered: I do hear.

Deuteronomy 13:6 If thy brother the son of thy mother, or thy son, or daughter, or thy wife that is in thy bosom, or thy friend, whom thou lovest as thy own soul, would persuade thee secretly, saying: Let us go, and serve strange gods, which thou knowest not, nor thy fathers,

2 Samuel 1:26 I grieve for thee, my brother Jonathan: exceeding beautiful, and amiable to me above the love of women. As the mother loveth her only son, so did I love thee.

Proverbs 18:24 A man amiable in society, shall be more friendly than a brother.