2 Samuel 1:26

Thy love to me was wonderful. Never was there a purer friendship than that of Jonathan for David. It began just after the combat with Goliath, when the young prince, instead of seeing in David a rival, who had equalled his own feat of valour, took him to his heart, put upon him his own robe and armour, and thus presented him to the army as his friend and brother. Nor did his father's hatred of David, nor the knowledge that David was to inherit the kingdom, interfere with his love. He remained a dutiful son to his father, and accepted his inferior position with magnanimity, without once seeing in David cause for blame; and it surpassed the love of women, because, to requite their devotion, they look for protection and homage, the more delightful because it is paid by the strong to the weak. But here the lives of the two friends could not combine in one happy fusion of mutual union. Their hearts were bound together, but a hard fate, of which they were fully aware, made the ruin of the one the certain result of the happiness of the other. Nevertheless, Jonathan, with everything to lose, and David with everything to gain, remained true and loyal friends.