The first temple covenants are “obedience” and “sacrifice.” The order places the obligation for obedience before the obligation for sacrifice. They belong in that order.
Obedience requires men to support their wives (D&C 83:2) and parents to care for their children (D&C 83:4). [The first verse of the Book of Mormon informs us Nephi was supported by his goodly parents, including receiving a good education. (1 Ne. 1:1.)] This principle to care for family must happen before any sacrifices can be considered.
In other words, before any sacrifice is made to help the poor, build a temple, support a community, or any other good and charitable thing obedience to the commandment to care for your family members must be satisfied. Those who fail to provide for their families are no better than the faithless. (1 Tim. 5:8.) Those who disobey the obligation to support and care for their families bring the faith of Christ into disrepute and cause scorn for His church.