Genesis 31:24
And God came to Laban the Syrian in a dream by night, and said unto him, Take heed that thou speak not to Jacob either good or bad. And God came to Laban the Syrian in a dream by night, and said unto him, Take heed that thou speak not to Jacob either good or bad.
Laban did not learn that Jacob was gone until three days after he had left, and he then pursued him to bring him back by force, with God intervening just as Laban was about to overtake Jacob. In pity for Jacob, God came to Laban in a dream by night to protect Jacob by warning him not to interfere with Jacob's departure or to harm and pressure him. The command not to speak either good or bad meant Laban must neither force Jacob to return nor try to persuade and urge him back with flattering inducements and offers. Afterward Laban told Jacob that he had power to hurt him but had been stopped the night before by the God of Jacob's fathers.
The intervention fulfilled the Lord's promises to Jacob in his hour of need, coming to instruct and comfort as well as to protect him. Jacob retold the story in his father's tent, and Joseph learned it in childhood as proof of God's love and care. When Joseph was carried to Egypt it came vividly before him and led him to believe that the God of his fathers would be his God and be with him in the land of his exile.