1 John 1:9

If we confess (ean omologwmen). Third-class condition again with ean and present active subjunctive of omologew, "if we keep on confessing." Confession of sin to God and to one another ( James 5:16 ) is urged throughout the N.T. from John the Baptist ( Mark 1:5 ) on. Faithful (pisto). Jesus made confession of sin necessary to forgiveness. It is God's promise and he is "righteous" (dikaio). To forgive (ina aph). Sub-final clause with ina and second aorist active subjunctive of apihmi. And to cleanse (kai agiash). So again with ina and the first aorist active subjunctive of kaqarizw (verse Mark 7 ).