Isaiah 44:6

“This is what the Lord says—
    Israel’s King and Redeemer, the Lord Almighty:
I am the first and I am the last;
    Apart from me, there is no God.

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Isaiah 45:5-6

5 I am the Lord, and there is no other;
    Apart from me, there is no God.
I will strengthen you,
    though you have not acknowledged me,

6 so that from the rising of the sun
    to the place of its setting
people may know there is none besides me.
    I am the Lord, and there is no other.

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Matthew 5:48

48 Be perfect, therefore, as your heavenly Father is perfect.

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Deuteronomy 32:4

4 He is the Rock, his works are perfect,
    and all his ways are just.
A faithful God who does no wrong,
    upright and just is he.