ביטחון

(5) Thus said the Eternal: Cursed is the one who trusts in human beings, who makes mere flesh his strength, and turns his thoughts from the Eternal. (6) He shall be like a bush in the desert, which does not sense the coming of good: it is set in the scorched places of the wilderness, in a barren land without inhabitant. (7) Blessed is the one who trusts in the Eternal, whose trust is the Eternal alone. (8) He shall be like a tree planted by waters, sending forth its roots by a stream: it does not sense the coming of heat, its leaves are ever fresh; it has no care in a year of drought, it does not cease to yield fruit.

Trust is peace of mind of the one who trusts. That one relies in his heart that the one he trusts in will do what is good and proper for him on the matter he has trusted him with, according to his ability and his understanding of what will further his good. But the main factor, which leads one to trust in the one trusted, and without which trust cannot exist, is for one's heart to be confident that the one trusted will keep his word and will do what he pledged, and that he will also think to do what is good for him even on what he did not pledge out of pure generosity and kindness.