Luke 18:14
I tell you, this man, and not the other, went back home forgiven and accepted by God. For everyone who exalts himself will be humbled, but whoever humbles himself will be exalted."
Romans 14:23
But the man who has misgivings about eating, if he then eats, has already condemned himself by so doing, because he did not follow his faith, and any action that does not follow one's faith is a sin.
1 Peter 5:5
You younger men, on your part, must be submissive to the elders. And you must all put on the servant's apron of humility to one another, because God opposes the haughty but bestows His unmerited favor on the humble.