You misunderstood Zechariah 14 again. You are working too hard to try to twist Zechariah 14 into Second Coming because you like to believe there will be some mountains being literally divided when Christ returns with his Saints. But it is not what the Word for God talked about! Please read carefully in context:
Zec 14:3-8
(3) Then shall the LORD go forth, and fight against those nations, as when he fought in the day of battle.
(4) And his feet shall stand in that day upon the mount of Olives, which is before Jerusalem on the east, and the mount of Olives shall cleave in the midst thereof toward the east and toward the west, and there shall be a very great valley; and half of the mountain shall remove toward the north, and half of it toward the south.
(5) And ye shall flee to the valley of the mountains; for the valley of the mountains shall reach unto Azal: yea, ye shall flee, like as ye fled from before the earthquake in the days of Uzziah king of Judah: and the LORD my God shall come, and all the saints with thee.
(6) And it shall come to pass in that day, that the light shall not be clear, nor dark:
(7) But it shall be one day which shall be known to the LORD, not day, nor night: but it shall come to pass, that at evening time it shall be light.
(8) And it shall be in that day, that living waters shall go out from Jerusalem; half of them toward the former sea, and half of them toward the hinder sea: in summer and in winter shall it be.
This is STILL talking about the FIRST COMING. So you need to understand that the Bible is a SPIRITUAL BOOK, not a seismologist's ledger. God is not interested in splitting literal mountains, except to make the point about the cleaving of the KINGDOM that a way be made for the remnant of the fallen Old Testament congregation into the New Testament congregation to start the great commission. Selah! Read again:
Zechariah 14:4
(4) And his feet shall stand in that day upon the mount of Olives, which is before Jerusalem on the east, and the mount of Olives shall cleave in the midst thereof toward the east and toward the west, and there shall be a very great valley; and half of the mountain shall remove toward the north, and half of it toward the south.
Mat 17:20
(20) And Jesus said unto them, Because of your unbelief: for verily I say unto you, If ye have faith as a grain of mustard seed, ye shall say unto this mountain, Remove hence to yonder place; and it shall remove; and nothing shall be impossible unto you.
Casting out devils is associated with Matthew 17 because it is a kingdom He Christ spoiled, bound Satan so that He might free the captivity of Israel. The faith of Christ moves this mountain, and the mountain in view is not physical, but a spiritual one! Have you forgotten that the mountains in God's Word represent Kingdoms? And the kingdom that was removed by the faith of Christ was the one that suffered violence, and that the violence took by force. This kingdom was split in two, making a valley that a way could be made for the remnant of the fallen Old Testament congregation to escape into the New Testament congregation to start their great commission! The destruction of the kingdom (mountain) cast into the sea creates a valley that God's people therein might escape. This was fulfilled in Christ Jesus by His Faithfulness and His cross. This is how the Saints is being added to the Lord, but it is not the Second Coming yet. And you need to read in verse 8 where the Holy Spirit went forth from the Cross to the Old Testament (former sea) and New Testament (hinder sea). Obviously not talking about the Second Coming, dude!
The least you could do, rather than avoid, is answer the question I asked about Jude 1:14-15. Do you agree or disagree that the 2nd coming in the end of this age is in view? This is important the fact Zechariah 14:5 records this same exact event. IOW, you can't have one passage involving a coming the other passage isn't involving. They are both involving the same coming. Based on how you are interpreting the coming meant in Zechariah 14:5, that it is involving the 1st coming, would mean for you to remain consistent you need to apply the coming meant in Jude 1:14-15 in the same manner, that it is a first coming prophecy not a 2nd coming prophecy. Do you then take Jude 1:14-15 to be involving the 1st coming rather than the 2nd coming?