1Cor 8:1-3
"Knowledge puffs up, but love builds up. If anyone thinks that he knows anything, he has not yet known as he ought to know. But if anyone loves God, he is known by God."
Gnosis physioi — knowledge puffs up (literally 'inflates like a bellows'). Agape oikodomei — love builds up (constructs like a building). The paradox: whoever thinks they know does not yet know as they ought; whoever loves God is known by God — relationship is more important than knowledge.
1Cor 8:9-13
"But take care that this right of yours does not somehow become a stumbling block to the weak... Thus, sinning against your brothers and wounding their conscience when it is weak, you sin against Christ."
The principle of freedom limited by love: the freedom of the strong must be exercised with awareness of its effect on the weak brother. To sin against the brother’s conscience is to sin against Christ.