If you've repented towards God and placed your trust in the Lord Jesus, then you will have an affection for Him, and you can rest assured He called you and elected you. You belong to Him! Lk 18:13-14, Jn 1:12-13,3:1-18, Ac 16:31,20:21, Ro 10:9-11
It’s not enough to just know “of” Him, or who He was, historically, or even that He died for the forgiveness of sin. To truly know Him is to know that life is good.