'Us' in the Bible

For God didn't give us a spirit of fear, but of power, love, and self-control.

who saved us and called us with a holy calling, not according to our works, but according to his own purpose and grace, which was given to us in Christ Jesus before times eternal,

That good thing which was committed to you, guard through the Holy Spirit who dwells in us.

If we endure, we will also reign with him. If we deny him, he also will deny us.