Numbers 15:19

Then it shall be, that, when ye eat of the bread of the land, ye shall offer up an heave offering unto the LORD.

Numbers 15:19 belongs to instructions about meal and drink offerings and offerings for sins of ignorance, directing Israel to present an offering to the Lord when eating the produce of the land. When eating the bread of the land, Israel was to offer up a heave offering to the Lord by setting apart a portion of dough from the household bread. When part of the dough is offered to the Lord, the rest may also be used.

The verse belongs to a law of one ordinance forever for the congregation and for the stranger that sojourns with them, so that as Israel is so the stranger is before the Lord. This means foreign servants bought with money and circumcised into the household became part of the household during service and naturalized citizens of the state, members of the congregation, and partakers of all the rites and privileges common to the people, recognized as citizens like Hebrew servants and alike amenable to and protected by the laws. The verse belongs to the Mosaic law showing that sin committed in ignorance is still sin and guilt remains until atonement is made. A person may sin without knowing it, but when the sin becomes known he is held guilty and must make the required offering in order to be forgiven.

The verse stands among the subsidiary laws given through Moses for Israel in that time and place, not as part of the eternal constitution of God's government in the Ten Commandments. The chapter is an instance of sanitary or police regulations adapted to that people, that time, and their surroundings, including provision for special and flagrant cases of presumptuous sin, as the stoning of the man who in defiance gathered sticks on the Sabbath. In Romans 11 this principle proves unbelieving Jews are fit to be saved, because the converted Jews are the firstfruit and the root, the firstfruit of the new covenant made with Judah and Israel, and the Gentiles partake only as a wild olive tree grafted in after the promise made to the Jews. This setting apart of dough was household work done by the Jewish mother, familiar to the little child clinging to his mother's skirts from his earliest years. By performing it before her children the mother molded them in accordance with the national discipline, showing that Jewish education began with the mother in the home.