For Jesus to be Lord of all means that he is the true king of all people, Jewish people and Gentile people. There is no one who is not subject to his kingship and rule (see Psalm 110:1–7; Philippians 2:6–11). The fact that Jesus is Lord of all means that the gospel can go to all.1
36 Il a envoyé la parole aux fils d'Israël, en leur annonçant la paix par Jésus-Christ, qui est le Seigneur de tous.