'Practices' in the Bible
Since you know that he is righteous, you also know that everyone who practices righteousness has been fathered by God.
Everyone who keeps living in sin also practices disobedience. In fact, sin is disobedience.
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.
Little children, don't let anyone deceive you. The person who practices righteousness is righteous, just as the Messiah is righteous.
The person who practices sin belongs to the evil one, because the Devil has been sinning from the beginning. The reason that the Son of God was revealed was to destroy what the Devil has been doing.
No one who has been born from God practices sin, because God's seed abides in him. Indeed, he cannot go on sinning, because he has been born from God.