Pretty Gruesome!
The picture of one who's garments are stained red with blood is striking. This theme is carried forward and expanded in Revelation where we see the some imagery. Our Lord indeed comes with wrath stored up for the wicked, wrath that we deserved. Because He Himself was bloodied at his First Coming, our blood shall not stain His garments at His Second.
Isaiah 63:1The Lexham English Bible
Who is this, coming from Edom,
from Bozrah in bright red garments?
Who is this honored in his garment,
lying down in his great strength?
“It is I, speaking in justice,
mighty to save!”