In response to Ms. Krzywicki’s “Old Testament speaks of one God,”, I must proclaim that Jesus has and will fulfill hundreds of OT prophecies. He’s the red thread running through the whole Bible. The Savior’s miraculous birth is foretold in Isaiah 7:14, “Therefore the Lord himself will give you a sign: the virgin will be with child and will give birth to a son, and will call him Immanuel.” (which means ‘God with us.’) Jews who deny Jesus was the Son of God/the promised Messiah try to hold this lack of an earthly father against him, stating the Messiah must be a descendant of King David. He was, but because genealogy was only described in the line of fathers and sons, they say that technically, Jesus doesn’t qualify (see the Jews for Judaism website).
A greater problem is trying to get these folks to see the big picture, that the Messiah first had to come as the Suffering Servant (Isaiah 53 is most famous, Psalm 22:16-18 describes a Roman crucifixion, written hundred of years before they even practiced such a ritual). Any day now, Christ will come again to reward all true believers—anyone who has turned from his own sin and asked Jesus to forgive him and rule in his heart. They will rule and reign with Christ, first in the Millennial Kingdom on earth, then forever in heaven.
Just as Isa. 53:6 says “We all, like sheep, have gone astray, each of us to his own way; and the Lord has laid on him the iniquity of us all,” the OT recounts many times Israel turned its back on God by chasing after idols and dozens of other 10-Commandment-breaking sins.
Finally, rather than having to get clean through the blood of the sacrificial lambs slaughtered by the priests, Jesus was offered as the Passover lamb for all time. Another type of Christ seen clearly in the OT is Abraham being spared the sacrifice of his son Isaac by the appearance of a ram caught in a thicket near the altar (Genesis 22).
And to Ms. Krzywicki’s question about who to listen to if you come to a fork in the road and God tells you to go one way and Jesus the other, the answer is, it couldn’t happen, because Jesus and the Father are one, just different representations of the Trinity. Like Jesus, I pray for the unity of all mankind, God’s creation: “that all of them may be one, Father, just as you are in me and I am in you.. .I have given them the glory that you gave me, that they may be one as we are one.” (John 17:21-22) May all be able to recognize Jesus as John the Baptist did in John 1:29, “Look, the Lamb of God, who takes away the sin of the world.”