'Loving kindness' in the Bible

Then said Saul unto the Kenites - Go, depart, get you down out of the midst of the Amalekites, lest I destroy you with them, yet, ye, dealt in lovingkindness, with all the sons of Israel, when they came up out of Egypt. So the Kenites departed out of the midst of the Amalekites.

Thus shalt thou do a lovingkindness for thy servant, for, into a covenant of Yahweh, hast thou brought thy servant, with thee, - But, if there is in me transgression, put me to death, thyself, for, unto thy father, wherefore shouldst thou bring me in?

If I am still alive, will you not show me the lovingkindness of the Lord, that I may not die?

You shall not cut off your lovingkindness from my house forever, not even when the Lord cuts off every one of the enemies of David from the face of the earth.”