"Honor the Lord with your possessions, and with the firstfruits of all your increase; so your barns will be filled with plenty, and your vats will overflow with new wine." Proverbs 3.9-10What calls the attention of the Creator is the obedience of His children. The firsfruits of all your increases are the firstfruits of your harvest.
The firstfruits are no different than the last.
But, for the Lord God they are. They are more import than all the rest of the harvest.
The firstfruits represent faithfulness, consideration, respect, priority and, above all, faith.