Then the father realized that this was the exact time at which Jesus had said to him, "Your son will live." So he and his whole household believed.
NIV
Then the father knew that it was at that very hour when Jesus had said to him, Your son will live. And he and his entire household believed (adhered to, trusted in, and relied on Jesus).
AMP
So the father knew that it was at the same hour, in the which Jesus said unto him, Thy son liveth: and himself believed, and his whole house.
KJV