Deuteronomy 13

2 and this thing that he said befalleth, and he saith to thee, Go we, and pursue [or follow] we alien gods, which thou knowest not, and serve we them,

3 thou shalt not hear the words of that prophet, either of that dreamer; for your Lord God assayeth you, that he know openly whether ye love him, either nay, in all your heart, and in all your soul.