The Barddas of Iolo Morganwg, Vol. I., ed. by J. Williams Ab Ithel, , at sacred-texts.com
p. 214 p. 215
There are three things that are imperceptible in God: His origin, because there can have been no time in which He did not exist; the greatness of His love, for how much so ever He does, He will see no end to what He can in justice accomplish; and His power, because there is no end, size, or measure to what He can do after the utmost intention.