Isaiah 44:6,8
Thus said the LORD the King of Israel, and his redeemer the LORD of hosts; I am the first, and I am the last; and beside me there is no God.
Torrey's Topical Textbook—AKJV

Isaiah 45:18,21
For thus said the LORD that created the heavens; God himself that formed the earth and made it; he has established it, he created it not in vain, he formed it to be inhabited: I am the LORD; and there is none else.
Torrey's Topical Textbook—AKJV