In the context of the OP’s question - I would have to say that it IS contrary to Christian belief. (or at least this Christian). The idea that the “incarnate Word of God” would be influenced by another and purely human thinker - even a spiritually inspired thinker - just does not make sense.
Again, in performing exegesis, we need to be careful not to back-cast high Christology such as the concept that Jesus on earth (prior to resurrection) was consciously omniscient. Beyond Paul’s writings that Jesus “emptied himself and became the form of a slave” (Philippians 2), we have clear scriptural evidence that Jesus was influenced by other human beings. For example, in Luke 2:
“51 He went down with them (his parents) and and came to Nazareth, and was obedient to them; and his mother kept all these things in her heart. 52 And Jesus advanced [in] wisdom and age and favor before God and man.”
There’s also the example of the Canaanite woman, who is the only other major character in the only story in the gospels in which Jesus seems to change his mind. Matthew 15:
“26 He said in reply, ‘It is not right to take the food of the children and throw it to the dogs.’ 27 She said, ‘Please, Lord, for event he dogs eat the scraps that fall from the table of their masters.’ 28 Then Jesus said to her in reply, ‘O woman, great is your faith! Let it be done for you as you wish.’ And her daughter was healed from that hour.”
Lastly, there’s even the Lord’s Prayer, which the Gospel of Luke suggests may not have even originated with Jesus, but with John the Baptist. Luke 11:
*‘1 He was praying in a certain place, and when he had finished, one of his disciples said to him, “Lord, teach us to pray
just as John taught his disciples.” 2 He said to them, “When you pray, say: Father, hallowed be your name, your kingdom come. 3Give us each day our daily bread 4and forgive us our sins for we ourselves forgive everyone in debt to us, and do not subject us to the final test.”’
*
All of these instances show how Jesus was influenced by others – sometimes in very large and profound ways. Under the tutelage of his parents, he matured and learned. The Canaanite woman episode showed that Jesus also was for the Gentiles. The Lord’s Prayer itself is the most profound prayer in all of Christianity. Yet all of them were somehow influenced by others.
Now - this does not mean that Jesus the man could not be influenced by others. Most certainly He could be. He might be influenced by mercy to cure someone or by justice to point out the sins of others…as in His indictment of the Pharisees. These are things that might influence Him to act in a certain way…
But how can one who knows ALL be influenced (in his ideas /teaching) by one who does NOT know all?
Again, we can’t back-cast the high Christology of later years onto Jesus as we read his interactions with the world around him. Not that we shouldn’t believe in the high Christology, but we also need to view Jesus as fully human as he moved through his ministry. He shows emotions, not just a cool facade of someone who truly fears. In the resurrection of Lazarus (John 11), he is “deeply perturbed and troubled” when Mary of Bethany falls at his feet. In the Agony in the Garden, he asks that the cup be taken from him.
The point made earlier – of the commonality in how Jesus and Hillel summarized the Torah – suggests that Jesus grew up in a Jewish milieu. I’d go so far as to say that to take Jesus out of his Jewish context is to misread the Bible! Even the Pontifical Biblical Commission (with a preface by Joseph Cardinal Ratzinger)
report in 1994 said that we can’t read the Bible with no reference to the time and place it was written:
"…the very nature of biblical texts means that interpreting them will require continued use of the <historical-critical method,> at least in its principal procedures. The Bible, in effect, does not present itself as a direct revelation of timeless truths but as the written testimony to a series of interventions in which God reveals himself in human history. In a way that differs from tenets of other religions, the message of the Bible is solidly grounded in history. It follows that the biblical writings cannot be correctly understood without an examination of the historical circumstances that shaped them. "