Moses's only successor was Jesus. Joshua may have looked like Moses's successor but he really wasn't. His name is actually the same as Jesus' in Hebrew but we spell it different so we don't confuse the two. But it's essentially the same exact name.
Aaron was the High Priest. He had successors.
the successors of Moses sit in the chair of Moses having the authority of the keys and the power to bind and loose Matt 23 and Jesus commanded them to be obeyed! Then the kingdom was taken from them matt 21:43 and given to Peter, the apostles, and their successors with the authority of the keys and the power to bind and lose!
Teaching authority of the Apostles and their successors in the church founded in the one true founded by Jesus Christ!
Jesus Christ is the head of the church, (eph 5:23) the body of Christ,
(col 1:18) the new and eternal covenant, (pre-figured Jer 31:31) (Heb 8:8) new covenant replaces the Mosaic covenant, (Heb 8:13) Christ replaces David as king, (Lk 1:32-33) Jesus Christ is the only mediator between God and men, (1 Tim 2:5 & Heb 12:24) but a mediator remains on earth mediating between God and His people, but Christ ascended to heaven, (acts 1) before He did He founded His church, on Peter, and the apostles, and their successors!
Mt 16:18 Mt 28:19 Acts 1:17 acts 8:31 & 35 Lk 10:16 Jn 8:32 Jn 13:20 Jn 16:13
Jn 20:21-22 eph 2:20
Jesus Christ continues HIS ministry in His new covenant church thru Peter, the apostles, and their successors with the same mission, power, and authority!
Mt 16:18 Mt 28:19 Acts 1:17 acts 8:31 & 35 Lk 10:16 Jn 8:32 Jn 13:20 Jn 16:13
Jn 20:21-22 eph 2:20
(None of the so called reformers were apostles)