'Regulate' in the Bible

Only, let each one live the life which the Lord has assigned him, and to which God has called him [for each person is unique and is accountable for his choices and conduct, let him walk in this way]. This is the rule I make in all the churches.

for we walk by faith, not by sight [living our lives in a manner consistent with our confident belief in God’s promises]—

Peace and mercy be upon all who walk by this rule [who discipline themselves and conduct their lives by this principle], and upon the [true] Israel of God (Jewish believers).

Therefore as you have received Christ Jesus the Lord, walk in [union with] Him [reflecting His character in the things you do and say—living lives that lead others away from sin],