Strive for congruence.
The evidence that you have a saving knowledge of Christ is loyal obedience to his commandments. Don’t be the one who speaks of himself in holy terms but then walks in dark, lowly places. A profession of faith joined with a wicked life leads no one to the Lord. Do not contradict your words with your deeds and distract from the work you are called to accomplish. If you abide in Christ, live as he did. Practice what you preach. Strive for congruence.
Now that you are obedient children of God do not live as you did in the past. You did not understand, so you did the evil things you wanted. But be holy in all you do, just as God, the One who called you, is holy. It is written in the Scriptures: You must be holy, because I am holy. 1 Peter 1:14-16
So if we say we have fellowship with God, but we continue living in darkness, we are liars and do not follow the truth. 1 John 1:6
We can be sure that we know God if we obey his commands. Anyone who says, I know God, but does not obey God’s commands is a liar, and the truth is not in that person. But if someone obeys God’s teaching, then in that person God’s love has truly reached its goal. This is how we can be sure we are living in God: Whoever says that he lives in God must live as Jesus lived. 1 John 2:3-6