And when Saul went forth with the hosts he said , ' God will try you with a river ; whosoever drinks of it is not of me , and whoso tastes it flot , he is of me , saving him who scoops up with his hand . ' But they drank of it , except a few of them ; and when he crossed it , and those who believed with him , they said , ' We have no power today against Goliath and his hosts . '