on the other hand only a soveriegn God can do this and give his saving grace to someone only because he is sovereign and speaks forth what shall be
“And GOD saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually. And it repented the LORD that he had made man on the earth, and it grieved him at his heart. And the LORD said, I will destroy man whom I have created from the face of the earth; both man, and beast, and the creeping thing, and the fowls of the air; for it repenteth me that I have made them.
But Noah found grace in the eyes of the LORD. And God said unto Noah, The end of all flesh is come before me; for the earth is filled with violence through them; and, behold, I will destroy them with the earth. Make thee an ark of gopher wood;……. And, behold, I, even I, do bring a flood of waters upon the earth, to destroy all flesh, wherein is the breath of life, from under heaven; and every thing that is in the earth shall die. But with thee will I establish my covenant; and thou shalt come into the ark, thou, and thy sons, and thy wife, and thy sons' wives with thee. Thus did Noah; according to all that God commanded him, so did he.”
Genesis 6:5-8, 13-14, 17-18, 22 KJV
Because he is God he’s able to look upon Noah who didn’t earn anything God was repenting over all flesh yet he gave boah grace and a promise that if he believed what he was saying and acted he would make a new covenant with Noah and his family
that’s grace through faith if God wasn’t sovereign he wouldn’t have the authority to give man grace grace is an attribute of Gods oersonality and heart towards mankind , of course he is soveriegn that’s why when he declares grace it’s real and true