1 Corinthians 8:8-9
Because it’s easy to overlook ways that we can cause others to stumble in their walk with Christ we must take great care to be aware of the conscience of our brothers and sisters. We are called to come along side the weak and help to build them up to maturity, not to trample them unlovingly under the guise of “right teaching.” There is no such thing as right Christian teaching without love...the two are always connected to each other.
It also helps to consider that the weak and the strong are perspectives that we look upon each other from. The weak are strong to those who are weaker than themselves, while the strong are weak to those who are stronger than themselves. Understanding this will help keep the “strong” from pride and the “weak” from despondency.