Psalms 18: 25-36
David could look back with great gratitude and sing this song
Human nature wants to use a small measure of mercy with others, but wants a large measure of mercy from God. Jesus told us to expect the same measure from God that we give to others.
The attitude of God towards men is created by their attitude towards Him. This principle works in a positive way; those who show great mercy are given great mercy. It also works in a negative way: with the devious You will show Yourself shrewd. One illustration of this was how God used the shrewd Laban to educate the devious Jacob (Genesis 27-28).
With faith, how easy all exploits become! When we have no faith, though, to fight with enemies, and overcome difficulties, is hard work indeed; but, when we have faith, oh, how easy our victories! What does the believer do? There is a troop, well, he runs in faith, then, to fight with enemies, and overcome difficulties is hard wall, what about that? He leaps over it. It is amazing how easy life becomes when a man has faith. Does faith diminish difficulties? Oh, no, it increaseth them; but it increaseth his strength to overcome them. If thou hast faith, thou shalt have trials; but thou shalt do great exploits, endure great privations, and get triumphant victories.”