And then, unexpectedly, Laban confessed. There is sufficiency in my hand to do evil with thee, he said — the words of a man who has just reviewed his own forces and knows he could crush the camp in front of him. But the God of thy father spake with me in the evening, saying, Be careful of speaking with Jakob from good to evil (Genesis 31:29).
Targum Pseudo-Jonathan lets Laban's own mouth become the proof of the angelic intervention. The deceiver admits out loud that heaven spoke to him the night before — not because he has repented, but because he cannot help himself. The warning was too fresh. The sword too recent.
Notice the exact phrasing: from good to evil. Laban repeats it verbatim from the angel's command. That is how deeply the warning penetrated. He cannot even rephrase it. He has to quote.
The Maggid teaches: when someone who hates you tells you that heaven told them not to hurt you, believe them. The confession costs them too much to be a lie. Jakob was standing before a man who had been overruled by a voice he could not argue with — and who therefore had to settle for words, not violence.