Is there a limit to God's power?

No.

God can do anything He wants and there is no limit to His powerful ability.

God is omnipotent (all powerful).
God is holy.

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Genesis 18:14 — ~"Is anything too difficult for the LORD? At the appointed time I will return to you, at this time next year, and Sarah will have a son."

Luke 18:27 — But He said, "The things that are impossible with people are possible with God."

Revelation 19:6 — Then I heard {something} like the voice of a great multitude and like the sound of many waters and like the sound of mighty peals of thunder, saying,
"Hallelujah! For the Lord our God, the Almighty, reigns.

Leviticus 19:2 — "Speak to all the congregation of the sons of Israel and say to them, `You shall be holy, for I the LORD your God am holy.

1 Peter 1:15 — but like the Holy One who called you, be holy yourselves also in all {your} behavior;