“Knowledge puffs up but love builds up.” 1 Cor 8:1
Love and knowledge must go together, “speaking the truth in love” (Eph. 4:15). It has well been said, “Truth without love is brutality, but love without truth is hypocrisy.” Knowledge is power and it must be used in love. But love must always be controlled by knowledge.
We are free in Christ, but we must take care that our spiritual knowledge is tempered by love, and that we do not tempt the weaker Christian to run ahead of his conscience. Where knowledge is balanced by love, the strong Christian will have a ministry to the weak Christian, and the weak Christian will grow and become strong.