Authorized Version
    Howbeit there is not in every man that knowledge: for some with conscience of the idol unto this hour eat it as a thing offered unto an idol; and their conscience being weak is defiled.

American Standard Version
    Howbeit there is not in all men that knowledge: but some, being used until now to the idol, eat as [of] a thing sacrificed to an idol; and their conscience being weak is defiled.

The Bible in Basic English
    Still, all men have not that knowledge: but some, being used till now to the image, are conscious that they are taking food which has been offered to the image; and because they are not strong in the faith, their minds are troubled.

The Darby Bible
    But knowledge [is] not in all: but some, with conscience of the idol, until now eat as of a thing sacrificed to idols; and their conscience, being weak, is defiled.

The Webster Bible
    But [there is] not in every man that knowledge: for some with conscience of the idol to this hour eat [it] as a thing offered to an idol; and their conscience, being weak, is defiled.

Young's Literal Translation
    but not in all men [is] the knowledge, and certain with conscience of the idol, till now, as a thing sacrificed to an idol do eat [it], and their conscience, being weak, is defiled.

World English Bible
    However, that knowledge isn't in all men. But some, with consciousness of the idol until now, eat as of a thing sacrificed to an idol, and their conscience, being weak, is defiled.