Christ is indeed the only God of salvation, the cosmic Redeemer King. Having said that we may never drain from that conception of His being, His essential, God-ordained Israeli identity which makes Him essentially human too.
Salvation is of the Jews, as Paul said. It is to them first that the gospel of their Redeemer King must be presented. To neglect to do so is to disobey the commands of God and we can expect no blessing. To obey this command is to ensure life from the dead for our own souls and the life of God's children on earth.