Eat whatever is sold in the [public] meat markets, without asking any questions [about it] for [your] conscience' sake [i.e., do not inquire about the previous use of the food you buy, because you might discover something about it that would make you feel guilty of wrongdoing if you ate it].

Now if an unbeliever invites you for a meal and you decide to go, eat whatever is set in front of you without asking any questions for [your] conscience' sake [See verse 25].

that is, for the sake of the other person's conscience, not your own. For why should my freedom [to eat what I want] be judged [as wrong] by another person's conscience? [Note: The questions in this and the following verse may mean, "it is not worth eating questionable things, if doing so would bring criticism from a weak brother"].