Acts 7:6 in the King James Version
And God spake on this wise, That his seed should sojourn in a strange land; and that they should bring them into bondage, and entreat them evil four hundred years.
Context
5 He gave him no inheritance in it, no, not so much as to set his foot on. He promised that he would give it to him for a possession, and to his offspring after him, when he still had no child.
6 God spoke in this way: that his offspring would live as aliens in a strange land, and that they would be enslaved and mistreated for four hundred years.
7 ‘I will judge the nation to which they will be in bondage,’ said God, ‘and after that they will come out and serve me in this place.’