There is more than one mistake in the Qur'an, Jesus did not make clay birds and he did not speak when he was a baby, both of these accounts come from apocryphal literature that dates to the 2nd century or later.
The official stance of both the Catholic and Orthodox churches is that Mary is to be honored above all mankind and the Qur'an parrots this and although there are groups who want Mary declared a goddess and some groups who in the past believed Mary is a goddess the fact is you cannot find any such doctrine to be the official stance of either Catholicism, Orthodoxy, or Arianism. If Muhammad was a prophet he would have known that what Catholicism labels the Arian heresy taught that God is one and that Jesus is a created being. As to some Catholics praying to Mary for the forgiveness of their sins, you need to prove this point. In Catholicism priests are charged with the forgiveness of sin in the confessional. Catholics maintain they pray to Mary so that she as God's mother can ask her Son to answer their prayers.
I do not believe that I posted that Jesus claimed to have lived a sinless life. So why attack a straw man?
Hebrews 4:15-16
15 For we do not have a high priest who cannot sympathize with our weaknesses, but One who has been tempted in all things as we are, yet without sin. 16 Let us therefore draw near with confidence to the throne of grace, that we may receive mercy and may find grace to help in time of need. NAS
Temptation is not sin, so your appeal to the temptation is another straw man.
Jesus' statement in Luke 18 concerning only the Father is good simply demonstrates his humility and total obedience to his Father.
Matthew 21:42-44
42 Jesus said to them, "Did you never read in the Scriptures,
'The stone which the builders rejected,
This became the chief corner stone;
This came about from the Lord,
And it is marvelous in our eyes'?
43 "Therefore I say to you, the kingdom of God will be taken away from you, and be given to a nation producing the fruit of it. 44 "And he who falls on this stone will be broken to pieces; but on whomever it falls, it will scatter him like dust." NAS
Who was Jesus talking to when he said "the kingdom of God will be taken away from you"? The scribes and the Pharisees, not to the Jews as a whole.
Abdurrahman, Muslims accuse non-Muslims of taking parts of the Qur'an out of context in order to attack Islam and then you do the same in your futile attempt to avoid what the Bible teaches.
Hebrews 1:1-6
1 God, after He spoke long ago to the fathers in the prophets in many portions and in many ways, 2 in these last days has spoken to us in His Son, whom He appointed heir of all things, through whom also He made the world. 3 And He is the radiance of His glory and the exact representation of His nature, and upholds all things by the word of His power. When He had made purification of sins, He sat down at the right hand of the Majesty on high; 4 having become as much better than the angels, as He has inherited a more excellent name than they. 5 For to which of the angels did He ever say,
"Thou art My Son,
Today I have begotten Thee"?
And again,
"I will be a Father to Him
And He shall be a Son to Me"?
6 And when He again brings the first-born into the world, He says,
" And let all the angels of God worship Him." NAS
I fail to understand why you keep trying to come back to the Trinity when I am not a Trinitarian. If you think this one aspect of traditional Christianity proves Muhammad is a prophet and that the Qur'an is true you are self deceived. The Kingdom of God is a Hebrew kingdom that God promised to the Jews.
Jeremiah 31:30-40
31 "Behold, days are coming," declares the LORD, "when I will make a new covenant with the house of Israel and with the house of Judah, 32 not like the covenant which I made with their fathers in the day I took them by the hand to bring them out of the land of Egypt, My covenant which they broke, although I was a husband to them, "declares the LORD. 33 "But this is the covenant which I will make with the house of Israel after those days," declares the LORD, "I will put My law within them, and on their heart I will write it; and I will be their God, and they shall be My people. 34 "And they shall not teach again, each man his neighbor and each man his brother, saying, 'Know the LORD,' for they shall all know Me, from the least of them to the greatest of them," declares the LORD, "for I will forgive their iniquity, and their sin I will remember no more."
35 Thus says the LORD,
Who gives the sun for light by day,
And the fixed order of the moon and the stars for light by night,
Who stirs up the sea so that its waves roar;
The LORD of hosts is His name:
36 "If this fixed order departs From before Me," declares the LORD,
"Then the offspring of Israel also shall cease
From being a nation before Me forever."
37 Thus says the LORD,
"If the heavens above can be measured,
And the foundations of the earth searched out below,
Then I will also cast off all the offspring of Israel
For all that they have done," declares the LORD.
38 "Behold, days are coming," declares the LORD, "when the city shall be rebuilt for the LORD from the Tower of Hananel to the Corner Gate. 39 "And the measuring line shall go out farther straight ahead to the hill Gareb; then it will turn to Goah. 40 "And the whole valley of the dead bodies and of the ashes, and all the fields as far as the brook Kidron, to the corner of the Horse Gate toward the east, shall be holy to the LORD; it shall not be plucked up, or overthrown anymore forever." NAS
God made unconditional promises to Abraham, David, and Phineas and since God does not break His promises the day is coming when the Jews will have sovereign control over the whole of the Promised land under the kingship of Jesus the Christ with the Levites serving in God's temple.