Galatians 3:15
Brethren, (I speak after the manner of men) Even when a covenant is of man, once it is confirmed, no one cancels it or adds to it.
Hebrews 9:17
For a testament is confirmed by the death: otherwise it is not valid as long as the testator lives.
Romans 3:5
And if our iniquity commends the righteousness of God, what shall we say? Shall for this reason God be unjust who sends punishment? (I speak as a man.)
Romans 6:19
I speak a human thing because of the weakness of our flesh: that as ye presented your members to serve uncleanness and iniquity unto iniquity, likewise now present your members to serve righteousness unto holiness.
1 Corinthians 15:32
If after the manner of men I have fought with beasts at Ephesus, what does it advantage me, if the dead do not rise? let us eat and drink; for tomorrow we die.