'Merciful' in the Bible

Blessed are the merciful: for they shall obtain mercy.

Therefore when you do merciful deeds, don't sound a trumpet before yourself, as the hypocrites do in the synagogues and in the streets, that they may get glory from men. Most certainly I tell you, they have received their reward.

But when you do merciful deeds, don't let your left hand know what your right hand does,

so that your merciful deeds may be in secret, then your Father who sees in secret will reward you openly.

Peter took him aside and began to rebuke him, saying, "God be merciful to you, Lord! This must never happen to you!"