Cross reference
John 2:9
9 When the ruler of the feast had tasted the water that was made wine, and knew not whence it was: (but the servants which drew the water knew;) the governor of the feast called the bridegroom,
John 4:46
46 So Jesus came again into Cana of Galilee, where he made the water wine. And there was a certain nobleman, whose son was sick at Capernaum.
John 7:17
17 If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself.
Psalms 119:100
100 I understand more than the ancients, because I keep thy precepts.