If Jesus is Truth, then why did Jesus deliberately lead his disciples to believe that John the Baptist was Elijah after the Baptist was already killed (see Matthew 17:10-13), when John himself had so clearly denied such a thing while he was still alive (see John 1:19-21)?
No, John was not Elijah
reincarnated. The Old Testament does not teach reincarnation.
Luke 1, the angel tells John's father:
17"And it is he who will go as a forerunner before Him
in the spirit and power of Elijah, to turn the hearts of the fathers back to the children, and the disobedient to the attitude of the righteous; so as to make ready a people prepared for the Lord,"
also:
2 Kings 1
8 They replied, "He was a man with a garment of hair and with a leather belt around his waist."
The king said, "That was Elijah the Tishbite."
Matthew 3
4John's clothes were made of camel's hair, and he had a leather belt around his waist. His food was locusts and wild honey.
If Jesus is Truth, then why did he speak in parables so as to deliberately keep some of his listeners from understanding and being saved (see Matthew 13:10-15)? Could it be that if they understood his true message, they would realize that he was the opposite of what he presented himself to be, and thus be saved from his clutches?
If you read Isaiah 6 (which Jesus quoted), you will see his reason to be similar to the act of reaping. As in Isaiah 6 only a remnant would remain, in Matt. 13 Jesus implies only the remnant will understand. My own interpretation of this is that only people who want to learn about their faith would be able to learn from the parables (v.12 "Whoever has will be given more, and he will have an abundance"), while people who disbelieve or mock the faith will find it nonsense ("Whoever does not have, even what he has will be taken from him").
The bottom line is that if you don't accept ("hear") what Jesus said plainly, neither will you be able accept ("understand") what He said through parables. But nobody will stop you from doing either.
If Jesus is Truth, then why did he tell would-be disciples that they must hate their families if they wanted to be his disciples (see Luke 14:26)? Why did he say his mission was to cause division within familes (see Luke 12:49-53)? And why did he promise his disciples a hundredfold return on everything they gave up for him (which included their wives and children, and other family members), plus everlasting life (see Matthew 19:29)? Of course, he didn't mention where they would be spending their everlasting life, did he?
Jesus knew his message was a controversial one, and that someone willing to follow him stood the chance of losing everything else (as any orthodox Muslim who converted to Christianity would be able to tell you). Jesus made certain they knew that risk, but also told them that what they gained was incomparably more.
What Jesus promises with "eternal life" is clear from his line of reasoning. Jesus told the young man, "If you want to enter life, obey the commandments," and he said he did, but
he still lacked something. Wherupon Jesus told him "If you want to be perfect, go, sell your possessions and give to the poor, and you will have treasure in heaven. Then come, follow me." The implication was that certainty required sacrifice on his part - and the sacrifice was the same one Jesus made: to give your life over to God and accept his salvation through Christ.
If Jesus is Truth, then why did he lie to his brothers in John 7:8 and say that he wasn't going yet to the feast of Tabernacles, but then in John 7:10, he went there in secret after they left? Could it be that lies like this are what kept his brothers from believing in him (see John 7:5)?
The key is right there in verse 10:
Jesus did not go publicly (as his brothers wanted him to). "
Not until halfway through the Feast did Jesus go up to the temple courts and begin to teach." (v.14).
Jesus told them "the right time for me has not yet come; for you any time is right", i.e. they could expect him at any time, but He would decide the time himself. At the time of their prompting, Jesus was "not yet" going to the Feast and evidently wasn't ready (or just didn't know when) to begin his public ministry yet. After they were gone, he was free to go there in secret and wait for the appointed time.
If you think about it, this is the same thing Jesus told us. He said He was coming again; only God knows the appointed time, but we should expect Him at any moment. He knew what people were saying about him at the Feast; He knows what we are saying about Him now.
If Jesus is Truth, then why did he direct two of his disciples to steal an ass and her colt for him to ride into Jerusalem on, so that this would appear to be another fulfillment of prophecy (see Matthew 21:1-7)? If he had indeed been the fulfillment of prophecy, it seems to me he wouldn't have had to go to such ridiculous lengths to make it happen.
The colt/foal (there was probably only one animal involved, as Mark, Luke and John indicate) was ready for him. The fact that Jesus knew where it was and how it would be found means that it was prepared for him - and since you don't believe in miracles, why don't you think the owner prepared it himself? That the words "God needs them" sufficed, means the owner (if he or anybody else even asked, since it doesn't seem so) released them willingly at such a request. Personally I don't see why God did not provide them just like He did the ram when Abraham almost sacrificed his son. God can't "steal" something He already owns. And there is no prescription
how prophecy should be fulfilled. The significance was not lost on the crowd.
If Jesus is Truth, then why did he tell his disciples in Luke 22:36-38 to sell their clothes if necessary, and buy a sword if they had none, and when they showed him they had two swords, he said it would be enough. But later, when Simon Peter actually used one of the swords to cut off the right ear of the high priest's servant who came to arrest Jesus, Jesus chastised him, telling him to put the sword away and reminding him that he must drink from the cup which his father had given him (see John 18:10,11). He deliberately set up the whole sword scenario to begin with, so why the contradictory advice from this epitome of truth and light whenever there are other people around to witness his piety? In Luke, he used this opportunity he had created to "prove" he was the son of God by healing the servant's ear (see Luke 22:49-51). Was it all just a part of his dark charade? Were his unfortunate disciples merely ignorant pawns in his chess game?
You are edging on conspiracy theory, which is frankly not necessary. Jesus was saying that the time of his trial was coming near, and that He would be arrested and treated as a common criminal. While they were with Him they needed nothing - the implication is clear: when they are without Him they might. But the eager disciples thought He wanted them to defend Him (which He obviously didn't) and showed that they were "armed and ready". Jesus dismissed them with "that is enough!" (Gr.
hikanon estin) in exasperation (echoed in v.51, when He says "no more of this!") - not as encouragement.
I know that Christians will always find a way to explain the unexplainable, because they'd rather die than give up the illusions they've spent a lifetime creating for themselves and for posterity - but in their heart of hearts, they must see all these things too - don't they?
I can only repeat what Jesus said in Matt. 13. It is possible to understand these things, but if you don't want to, you won't.