G3435–μολύνω–molunō

But all believers do not recognize these facts. Some, from force of habit in relation to the idol, even now eat idol sacrifices as such, and their consciences, being but weak, are polluted.

μολύνεται. molunetai “it is defiled.”

Yet you have in Sardis a few who have not soiled their garments; and they shall walk with Me in white; for they are worthy.

ἐμόλυναν emolunan “soiled”

These are those who had not defiled themselves with women: they are as pure as virgins. They follow the Lamb wherever He goes. They have been redeemed from among men, as firstfruits to God and to the Lamb.

ἐμολύνθησαν, emolunthēsan “was defiled,”