Albert Barnes Commentary Matthew 27:19

"And while he was sitting on the judgment-seat, his wife sent unto him, saying, Have thou nothing to do with that righteous man; for I have suffered many things this day in a dream because of him." — Matthew 27:19 (ASV)

Have thou nothing to do, etc. That is, do not condemn him. Perhaps she was afraid that the vengeance of heaven would follow her husband and family if he condemned the innocent.

That just man. The word just here has the sense of innocent; or not guilty. She might have been convinced of his innocence from other sources, as well as from the dream. It is possible that the woman might have been a worshipper of the true God, and that she might therefore have desired that the Messiah should be released.

I have suffered many things, etc. Dreams were occasionally considered as indications of the Divine will; and, among the Romans and Greeks, as well as the Jews, great reliance was placed on them.

Her mind—probably agitated with the subject, convinced of the innocence of Jesus, and knowing that the Jews would make every effort to secure his condemnation—was also disturbed during her sleep, perhaps with a frightful prospect of the judgments that would descend on the family of Pilate if Jesus was condemned. She therefore sent to him to secure his release, if possible.