3 Do nothing from selfishness or empty conceit, but with humility of mind regard one another as more important than yourselves; 4 do not merely look out for your own personal interests, but also for the interests of others. Philippians 2:3-4 (NASB)
Our pride is insidious. When we are convicted of our prideful behaviour or thoughts it takes cover and transforms itself into false humility. We take pride in our humility or our service or our devotion. Pride is idolatry of self. When we are not humble our pride actually displaces God with self as our center. Christians are not immune from it.
Pride was Lucifer’s primary sin that caused him to become Satan, the one who opposes God.
4 He must be one who manages his own household well, keeping his children under control with all dignity 5 (but if a man does not know how to manage his own household, how will he take care of the church of God?), 6 and not a new convert, so that he will not become conceited and fall into the condemnation incurred by the devil. 1 Timothy 3:4-6 (NASB)