Romans 12:3

For I say, through the grace given unto me, to every man that is among you, not to think of himself more highly than he ought to think; but to think soberly, according as God hath dealt to every man the measure of faith. Romans 12:3 KJV

Paul was writing to the Church in rome, in the first two versre he asked them not to be like the lost souls of this world. He was asking them now not to think to highly of himself. To humble yourself. Do not see yourself better than your brother. But think clearly or soberly as the text says. For just as God dealt with you, so did he went every man woman child to let the Lord work in their heart. Let us not think ourselve better than our fellow christians. We are all the body of Christ.