'Master' in the Bible

"Return, apostate children," {declares} Yahweh. "For {I am your master}, and I will take you one from a city and two from a clan, and I will bring you [to] Zion.

not like the covenant that I {made} with their ancestors on the day of my grasping [them] by their hand, bringing them out from the land of Egypt, my covenant that they themselves broke, though I myself was a master over them," {declares} Yahweh.