Mortal sin is an action so contrary to the will of God that
it results in a complete separation from
God and his grace.

Venial sin is a less serious offense against the will of God
that diminishes one’s personal character and weakens but does not rupture one’s relationship with God.

Copyrighted material from Saint Mary's Press,
Singer-Towns, Brian , , , Christian Morality, 9781599824468

Capital sins is seven sins that are particularly harmful because they lead to
and reinforce other sins and vices.

Mortal Sin

Venial Sin

Capital Sin