Until people understand the figurative uses of clouds and other pheonomena you are going to misinterpet scripture till the day yus die.
Use of clouds in prophetic scripture:
Isa 19:1 The burden of Egypt. Behold, the LORD rideth upon a swift cloud, and shall come into Egypt: and the idols of Egypt shall be moved at his presence, and the heart of Egypt shall melt in the midst of it.
It was the Assyrians who were the instrument of God's wrath on Egypt, though it is said that God was coming on a cloud - Isaiah 20:1-4
In Zephaniah:
Zep 1:14 The great day of the LORD is near, it is near, and hasteth greatly, even the voice of the day of the LORD: the mighty man shall cry there bitterly.
Zep 1:15 That day is a day of wrath, a day of trouble and distress, a day of wasteness and desolation, a day of darkness and gloominess, a day of clouds and thick darkness,
Also in Nahum:
Nahum 1:3 The LORD is slow to anger, and great in power, and will not at all acquit the wicked: the LORD hath his way in the whirlwind and in the storm, and the clouds are the dust of his feet.
In Daniel:
Dan 7:13 I saw in the night visions, and, behold, one like the Son of man came with the clouds of heaven, and came to the Ancient of days, and they brought him near before him.
To properly understand Jesus' statement in Mat 26:64 it is important to understand how the prophets used the term “clouds” - it is prophetic/apocalyptic language and not used literally.
When the prophets spoke of God's judgment against Israel by using foreign armies it is said to be the Lord on a "cloud" – as the examples above show God using foreign armies, notice how the prophets spoke of “cloud or clouds”
Jesus is using the same “prophetic language" in Matthew:
Mat 26:64 Jesus saith unto him, Thou hast said: nevertheless I say unto you, Hereafter shall ye see the Son of man sitting on the right hand of power, and coming in the clouds of heaven.
Mat 26:65 Then the high priest rent his clothes, saying, He hath spoken blasphemy; what further need have we of witnesses? behold, now ye have heard his blasphemy.
"coming in the clouds of heaven.....now ye have heard his blasphemy"
The high priest accuses Jesus of blasphemy, not because he's claiming to be the son of God, it's because "coming on clouds" is always spoken of in the scripture in relationship to Deity and especially in regard to judgment that Jesus states is coming on the apostate 1st century Jews.