Simple, we have sinned too, forgive that we may be forgiven! Amein? Amein.
New King James Version (NKJV)
Forgiveness and Prayer
“25 “And whenever you stand ‘praying’ (siyach(ing): pondering, meditating, etc..), if you have anything against anyone, forgive him, that your Father in heaven may also forgive you your trespasses.”
Strong’s Hebrew Lexicon:
Pray (er, ing): 7878 siyach see’-akh a primitive root; to ponder, i.e. (by implication) converse (with oneself, and hence, aloud) or (transitively) utter:– commune, complain, declare, meditate, muse, pray, speak, talk (with).