Bible Verses About Ostentation: In prayer and alms-giving

Clouds and wind, and rain there is none, Is a man boasting himself in a false gift.

Let another praise thee, and not thine own mouth, A stranger, and not thine own lips.

`Take heed your kindness not to do before men, to be seen by them, and if not--reward ye have not from your Father who is in the heavens;