Deuteronomy 12:8

Ye shall not do after all the things that we do here this day, every man whatsoever is right in his own eyes.

Deuteronomy 12:8 forbids every person from doing what is right in his own eyes and requires observing and hearing all that God commands rather than deciding for himself what is right and acting by his own judgment. It makes personal judgment no standard of right and wrong, calling instead for obedience to God's commands rather than doing whatever seems right to each person. It gives no liberty to depart from God's requirements, even when disobedience seems harmless or is urged with a plausible motive. A course of action is to be judged by whether it agrees with God's will, not by whether harm can be seen to follow from it.

Sincerity or a sense of holiness cannot take the place of obedience to God's law. Ancient Israel had great light and privileges but failed to live by them or to value them, until their light became darkness as they followed their own judgment instead of following God's counsel. God's people in the last days repeat Israel's example in this danger of doing what seems right to oneself. The same spirit of independent self-direction is contrary to Christ, and medical workers are warned against deciding independently what is right. They are to harmonize their work and serve under the direction of the Conference, rather than acting separately without unity.