Bible says commandment keeping people constitutes the true church of God. Jesus when talking about His church says My sheep knows me and I know my sheep.
Joh 10:14 I am the good shepherd, and know my sheep, and am known of mine
Joh 10:27 My sheep hear my voice, and I know them, and they follow me:
1Jn 2:3 And hereby we do know that we know him, if we keep his commandments.
1Jn 2:4 He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
1 John 2:3,4 says only christians who keep commandments of God knows Him rest of them don’t know Him.
The term ‘knowing’ in Bible refers to the relationship between husband and wife for example ‘Cain knew his wife and she conceived’ ‘Adam knew his wife’. Commandment keeping people know God as per 1 John 2:3,4 and thereby they constitute the Bride of God.
Also John 17:3 says eternal life is to know God. Bible says only commandment keeping people enter heaven Rev 22:14 and Rev 14:12.
False Church: In Mat 7:21-23 NKJV where a group of miracle healers says we did miracles and cast out demons in the name of Jesus and to them Jesus replies I never knew you because you didnt keep commandments. Remember Jesus knows only His bridal church.