This offering and commitment to the Lord (vv. 1-11) was only part of the Israelites' responsibility. They also needed to love their fellow dependent Israelites (vv. 12-15; cf. 6:5).
"Every third year the tithe was kept in the villages for the relief of the poor (14:28, 29) and was thus outside the control of the priests. To prevent irregularities in its distribution, and at the same time to preserve the religious character of the obligation, the man of Israel was required to make a solemn declaration at the central sanctuary that he had used the tithe according to the divine law."287
One commentator assumed that they made this declaration at the tabernacle, but the text seems to indicate that they did this wherever the Israelites lived.
Offering food to the dead (v. 14) was a Canaanite religious practice, and putting food in a grave with a dead body was a common Egyptian and Canaanite practice.288
God's people should continue to trust Him for the fulfillment of promised blessings yet unrealized (cf. 1 Thess. 1:2-10; 2 Pet. 3:3-18).