A lawless nation will disintegrate into chaos very rapidly. John the Baptist imposed God’s moral law on Herod, who was clearly not a Jew, when he rebuked Herod for committing adultery (see Luke 3:19 and Mark 6:17-18).
Under the Mosaic Law, strangers living with Jews were also expected to observe the Jews’ law (Exod. 12:19, 12:48; Deut. 1:16, 5:14, etc.)
While we live on this earth, we are all subject to God’s moral law, as Romans 2:14-16 explains.
Stephen, J. (2010). The Sufficiency of Scripture: The Key to Revival. Pleasant Word, Enumclaw, p. 163