Cross reference
2 Kings 20:10
10 And Hezekiah answered, It is a light thing for the shadow to decline ten steps: nay, but let the shadow return backward ten steps.
2 Kings 2:10
10 And he said, Thou hast asked a hard thing: `nevertheless', if thou see me when I am taken from thee, it shall be so unto thee; but if not, it shall not be so.
2 Kings 3:18
18 And this is but a light thing in the sight of Jehovah: he will also deliver the Moabites into your hand.
Isaiah 49:6
6 yea, he saith, It is too light a thing that thou shouldest be my servant to raise up the tribes of Jacob, and to restore the preserved of Israel: I will also give thee for a light to the Gentiles, that thou mayest be my salvation unto the end of the earth.
Mark 9:28-29
28 And when he was come into the house, his disciples asked him privately, `How is it' that we could not cast it out?
29 And he said unto them, This kind can come out by nothing, save by prayer.
John 14:12
12 Verily, verily, I say unto you, he that believeth on me, the works that I do shall he do also; and greater `works' than these shall he do; because I go unto the Father.