When we are obedient to that which really matters (treating other people kindly) that is when we lay hold of God's promises and we live and dwell close to him in his goodness and our prayers are answered and we get the life we long for and desire from God. Accurate doctrine and the abundance of our studies and ministries does not do that for us. That's not what God says. Obedience is better than the sacrifice of our service and the depth of our knowledge. Love is what counts, not doctrinal excellence.
Peter and John looked directly at the beggar asking for money. Peter said, "Look at us!" and the man looked expecting it but, instead, is told, in the Name of Jesus, "get up and walk!"
The people are astonished at this and wondered at 'their' power and are addresses this saying, "By faith in the name of Jesus, this man whom you see and know has been made strong. It is Jesus' name and the faith that come through Him that has given him this complete healing in your presence." (Acts 3:16)
Peter adds, "And now, brothers, I know you acted in ignorance, as did your leaders." (Acts 3:17) and directs them to repent, and turn back, so that their sins may be forgiven (Acts 3:18). Repent of what? They had not been unkind, had they?
Likewise Acts 17:30 speaks of false images of God saying, "In times past, God overlooked such ignorance, but now he commands all people everywhere to repent."
1 Peter 1:14, implies the root of disobedience saying, "As obedient children, do not conform to the evil desires you had when you lived in ignorance."
Ephesians 4:18 speaks of ignorance of the gentiles also, "They are darkened in their understanding and alienated from the life of God because of the ignorance that is in them due to the hardness of their hearts."
And 1 Peter 2:15 says, "For this is the will of God, that by doing good you should put to silence the ignorance of foolish people." Here, good is diametrically opposed to evil and commendation is offered to those that endure the pain of suffering for being conscious of God (1 Peter 2:20).
Finally, Hebrews 9:7, again, alludes to the cause of sin as being ignorance saying, "But only the high priest entered the holy place, and then only once a year, and never without blood, which he offered for himself and for the sins the people had committed in ignorance." and further explains, "By this arrangement the Holy Spirit was showing that the way into the Most Holy Place had not yet been disclosed as long as the first tabernacle was still standing." and following with this disclosing saying, "For Christ did not enter a man-made copy of the true sanctuary, but He entered Heaven itself, now to appear on our behalf in the presence of God." (Hebrew 4:24)
Nor did He enter Heaven to offer Himself again and again, as the high priest enters the Most Holy Place every year with that is not his own. Otherwise, He would have to had suffered repeatedly since the foundation of the world. But now He has appeared once for all at the end of the ages to do away with sin by he sacrifice of Himself." (Hebrews 9:25-26)
Just as a man is appointed once to die, and then face judgment, so also Christ was offered once to bear the sins of many, and He will appear a second time, not to bear sin, but to bring salvation to those who eagerly await Him. (Hebrews 9:27-28)
Understanding (knowledge) of this is doctrinal excellence, and great love follows the awareness.