John Gill Reformed Baptist @doctorgill

And brought the ass and the colt,.... To Jesus, as Mark and Luke add, and who only make mention of the colt: both were undoubtedly brought; the colt being unloosed and taken away, the ass, its dam, followed after: and put on them their clothes; their loose upper garments, to be instead of saddles and trappings, and that Christ might sit thereon with ease and...

Albert Barnes Presbyterian @notesbybarnes

Verse 7. And put on them their clothes. This was done as a token of respect, 2Ki 9:13.

Geneva Bible Notes Reformed @genevanotes

And brought the ass, and the colt, and put on them their clothes, and they set [him] thereon. (c) Their uppermost garment. (d) Upon their garments, not upon the ass and the colt.