It is Jesus, not angels, who became a human to help us as our Supreme Priest.

Hebrews 2:14-18

14 So, since those whom God calls his children are all human beings [MTY], Jesus also became a human being just like them. The devil has the power to cause people to be afraid to die, but Christ became human in order that by his dying he might make the devil powerless. 15 Jesus did that to free all of us who are like slaves [MET] all the time we live, because we are forced to be afraid to die. 16 Because Jesus became a human being, it is not angels whom he wants to help. No, it is we who trust God as Abraham did whom he wants to help. 17 So, since he came to help humans, not angels, he had to be made exactly like us whom he calls his own brothers and sisters. He wants to be a Supreme Priest who acts mercifully to all people and who faithfully does what God wants, so that people who had sinned would be declared no longer guilty. 18 Specifically, he is able to help those/us who are tempted to sin. He can do that because he suffered, and he was also tempted to sin like we are tempted to sin.