Why does Isaiah call Jesus a Savior?

St. Cyril of Jerusalem says, “There is One Lord Jesus Christ, a wondrous name, indirectly announced beforehand by the Prophets. For Isaiah the Prophet says, Behold, your Saviour is coming, having His own reward (Isa. 62:11). Now Jesus in Hebrew is by interpretation Saviour . For the Prophetic gift, foreseeing the murderous spirit of the Jews against their Lord, veiled His name, lest from knowing it plainly beforehand they might plot against Him readily. But He was openly called Jesus not by men, but by an Angel, who came not by his own authority, but was sent by the power of God, and said to Joseph, Fear not to take unto yourself Mary your wife; for He who is conceived in her is of the Holy Spirit. And she shall bring forth a Son, and you shall call His name Jesus (Matt. 1:20). And immediately he gives the reason for this name, saying, for He shall save His people from their sins .”⁴⁰⁷