“Look unto Me and be ye saved, all the ends of the earth: for I am God, and there is none else.”- Isaiah 45:22

Salvation is God’s greatest work; and, therefore, in His greatest work, He specially teaches us this lesson, that He is God, and that beside Him there is none else…O, does it not lower the pride of man, when we hear the Lord say, “Look unto Me, and be ye saved, all the ends of the earth?” It is not. “Look to your priest, and be ye saved:” if you did, there would be another god, and beside Him there would be some one else. It is not “Look to yourself;” if so, then there would be a being who might arrogate some of the praise of salvation. But it is “Look unto Me.” How frequently you who are coming to Christ look to yourselves. “O!” you say, “I do not repent enough.” That is looking to yourself. “I do not believe enough.” That is looking to yourself. “I am too unworthy.” That is looking to yourself. “I cannot discover,” says another, “that I have any righteousness.” It is quite right to say that you have not any righteousness; but it is quite wrong to look for any. It is, “Look unto Me.” God will have you turn your eye off yourself and look unto Him.

From the cross of Calvary, where the bleeding hands of Jesus drop mercy; from the Garden of Gethsemane, where the bleeding pores of the Saviour sweat pardons, the cry comes, “Look unto Me, and be ye saved, all the ends of the earth.” From Calvary’s summit, where Jesus cries, “It is finished,” I hear a shout, “Look, and be saved.” ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0060.cfm