NT-EPISTLES.filter - dby leavened:

dby@1Corinthians:5:7 @ Purge out the old leaven, that ye may be a new lump, according as ye are unleavened. For also our passover, Christ, has been sacrificed;

dby@1Corinthians:5:8 @ so that let us celebrate the feast, not with old leaven, nor with leaven of malice and wickedness, but with unleavened [bread] of sincerity and truth.