'Us' in the Bible

I press on toward the goal to win the [heavenly] prize of the upward call of God in Christ Jesus.

Let us therefore, as many as be perfect, be thus minded: and if in any thing ye be otherwise minded, God shall reveal even this unto you.

Nevertheless, whereto we have already attained, let us walk by the same rule, let us mind the same thing.

Brethren, be followers together of me, and mark them which walk so as ye have us for an ensample.