1 Samuel 20:9

And Jonathan said, far be it from thee
To entertain such a thought of me, or to have the least suspicion of me, that I should conceal my father's ill intentions against thee, if known to me;

for if I knew certainly that evil were determined by my father to come
upon thee, then would I not tell it thee?
certainly I would; canst thou doubt of my kindness and fidelity? surely thou hast no reason, when such a covenant of friendship subsists between us, and there has not been the least breach of it on either side.