Originally Posted by a Non-Catholic
pennitent and pennace are 2 entirely different things you'll find no support for pennance...
Being penitent and penance are inexorably linked in both the Old and New Testaments of the Bible. This is also what was meant when the people in the Gospels were told to bring forth fruit worthy of repentance. Penitence is the like a second step that follows repentance, and penance is a scriptural aspect of that.