Cain and Abel: attitude behind giving --Genesis4

Gen4:4-5"And the Lord had regard for Abel and for his offering; but for Cain and for his offering He had no regard."16 " Then Cain went out from the presence of the Lord, and settled in the land of Nod.."

Both Abel and Cain gave offerings, but one gave the firstlings and one didn't.
The attitute behind giving is vitally important. If we're not putting the Lord in the first, then "sin is crouching at the door, and its desire is for you, but you must master it"(v7) If we don't have the Lord as our first desire, we'll lose our true identity in Christ, then we're entering into a place of competition. We might win one or two fights along the way but then there'll always be someone else that's stronger and smarter that will beat us. We'll lose the sense of direction and end up settling in the place of Nod, which means wandering.