Hi ttoews,
b) note how prophets say "This is what God told me to tell you" whereas in the gospels Jesus merely says "Truly I say to you"
Yes, there are many verses where Jesus spoke on His own authority whereas other prophets did not.
d) OT passages referring to Jehovah are applied to Jesus in the NT
Yes, like these:
Jesus claimed the very things about Himself that are claimed for God in the Old Testament.
1. Jesus says He is the shepherd, but the OT says that God is the shepherd:
Jesus: John 10:11"I am the good shepherd. The good shepherd gives His life for the sheep.
OT/God: Psalm 23:1 The LORD is my shepherd; I shall not want.
2. Jesus claimed to be judge of all men and nations:
Jesus: 26For as the Father has life in Himself, so He has granted the Son to have life in Himself, 27and has given him authority to execute judgment also, because He is the Son of Man.
Matthew 25:31-33, "When the Son of Man comes in His glory, and all the holy angels with Him, then He will sit on the throne of His glory. 32All the nations will be gathered before Him, and He will separate them one from another, as a shepherd divides his sheep from the goats. 33And He will set the sheep on His right hand, but the goats on the left.
OT/God: Joel 3:11 Come quickly, all you nations from every side, and assemble there. Bring down your warriors, O LORD ! 12 "Let the nations be roused; let them advance into the Valley of Jehoshaphat, for there I will sit to judge all the nations on every side.
3. Jesus claims to be the light of the world but the OT says that God is the everlasting light:
Jesus: John 8:12Then Jesus spoke to them again, saying, "I am the light of the world. He who follows Me shall not walk in darkness, but have the light of life."
OT/God: Isaiah 60:19 "The sun shall no longer be your light by day, Nor for brightness shall the moon give light to you; But the LORD will be to you an everlasting light, And your God your glory.
4. Jesus claims to share God's eternal glory, but God in the OT says He will not give His glory to another:
Jesus: Jesus claimed to share in God's eternal glory, " John 17:5)5And now, O Father, glorify Me together with Yourself, with the glory which I had with You before the world was.
OT/God: Isaiah 42:8I am the LORD, that is My name; And My glory I will not give to another, Nor My praise to carved images.
5. Jesus spoke of Himself as the coming bridegroom, but this is how God depicts Himself in the OT:
Jesus: Matthew 25:1 "Then the kingdom of heaven shall be likened to ten virgins who took their lamps and went out to meet the bridegroom.
OT/God: Isaiah 62:5For as a young man marries a virgin, So shall your sons marry you; And as the bridegroom rejoices over the bride, So shall your God rejoice over you.
Hosea 2:16"And it shall be, in that day," Says the LORD, "That you will call Me "My Husband, And no longer call Me "My Master
Thank you for your help.