Now know I that the LORD saveth his anointed; he will hear him from his holy heaven with the saving strength of his right hand. (Psalms 20:6)
This king is either David, Davidide or Israelite. Do we know a king who does not need to be saved? Like the Nazarene, for example.
In his atoning death; saved from death:
As he saith also in another place, Thou art a priest for ever after the order of Melchisedec. Who in the days of his flesh, when he had offered up prayers and supplications with strong crying and tears unto him that was able to save him from death, and was heard in that he feared; (Hebrews 5:6-7)
A prince’s obedience
Though he were a Son, yet learned he obedience by the things which he suffered; And being made perfect, he became the author of eternal salvation unto all them that obey him; (Hebrews 5:8-9) Called of God an high priest after the order of Melchisedec (Hebrews 5:10)
Do we know a believer who gets saved repeatedly – every time they sin? We know many who find their obedience in a vice list, who have established a grip on the follies of Israel at Sinai, who replicate rebellion on the borders of Canaan, and who covet the greed and influence of the priesthood in New Testament times.