"He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him. But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him. He that saith he abideth in him ought himself also so to walk, even as he walked."
I John 2:4-6

But who can obey Jesus, that the love of God is perfected in them? This is not an obedience to perform some ceremonious task that we may be justified before God. That is heresy. Jesus does all of the atoning work of salvation, even clothing His righteousness upon us in the form of faith. God's love cannot be perfected in the unrighteous because they are without Jesus. So the perfection of love is not a question of salvation because it can only belong to those who are covered by the blood of Christ to make them more like Christ.
God's love is perfected in us because the obedience is not in word only but confirmed by our actions. In his letter, James says that faith without works is dead. This means that if faith is genuinely provided by God it will bring about actions that prove the faith exists whereby it cannot be denied that faith in Jesus is present and perfected (James 2:22). Consider it as well in the matter of love. Love is perfected not when we only say we love God, but when we obey the commands of Jesus because that obedience is proof of His love. It cannot then be denied that the perfect love of God is present in us.
So what ought we to do? If we say that we love Jesus we must love His commands! Sometimes we don't understand Him. Many times we understand all too well and it hurts that we must repent of some things to be right with God, but we must repent when He reveals these sins. It is when our everyday actions show the world that we trust, obey, and follow Jesus Christ that the love of the almighty God is perfected in us. Examine yourselves to see if your actions leave doubt of God's love. If you find that they do, please repent and obey that His love may be perfected in you through Christ.
Consider also: James 2:17-26; John 15:1-17; Romans 8:34-39; Ephesians 3:17-19