'Acquaintance' in the Bible

For no person will be justified [freed of guilt and declared righteous] in His sight by [trying to do] the works of the Law. For through the Law we become conscious of sin [and the recognition of sin directs us toward repentance, but provides no remedy for sin].

And this I pray, that your love may abound more and more [displaying itself in greater depth] in real knowledge and in practical insight,

so that you will walk in a manner worthy of the Lord [displaying admirable character, moral courage, and personal integrity], to [fully] please Him in all things, bearing fruit in every good work and steadily growing in the knowledge of God [with deeper faith, clearer insight and fervent love for His precepts];

Paul, a bond-servant of God and an apostle (special messenger, personally chosen representative) of Jesus Christ, for the faith of God’s chosen ones and [to lead and encourage them to recognize and pursue] the knowledge of the truth which leads to godliness,

No one who abides in Him [who remains united in fellowship with Him—deliberately, knowingly, and habitually] practices sin. No one who habitually sins has seen Him or known Him.