Hebrews does not identify the author but Theologians believe it was Paul the apostle. Hebrews is really difficult to interpret because it ties a lot of references from the Old Testament into it, that is one of the reasons Paul is believed to be the author, because of his knowledge of the Old Testament.
One verse that stood out to me is Hebrews 3:3 “For Jesus is considered worthy of more glory than Moses, just as the builder has more honor than the house.”