having purified your souls in obedience to the truth to the extent a sincere brotherly love, agape love for one another fervently from a pure heart (1 Peter 1:22) Pure love is a type of love that is unconditional, compassionate, and generous. God is pure and God is love. A sign of being like God is love. Not some causal acquaintance, it should be real or sincere within your church with a fervent love. A pure heart agape loves earnestly or fervent which conveys a since of wholeheartedness or intensity; without slack, strenuously, without undue let up. Love is a sign of a pure heart. and to the extent all of these, agape love which exists that which binds together to maturity (Colossians 3:14) Faith is energized and actionable through love, this is what strengthens the church (Galatians 5:6). Above all the other virtues the greatest is love. "Having put on the new man, that renewed in knowledge according to its creator, as elect of God we should have heartfelt compassion, kindness, ...
When we bear fruit, after being deeply rooted, and growing up truth in love, the love of God is fulfilled.