"With all these minute and burdensome exactions it was a practical impossibility for the people to keep the law. The great principles of righteousness set forth in the Decalogue, and the glorious truths shadowed in the symbolic service, were alike obscured, buried under a mass of human tradition and enactment. Those who were really desirous of serving God, and who tried to observe the whole law as enjoined by the priests and rulers, groaned under a heavy burden. PK 709.1"
"For they bind heavy burdens and grievous to be borne, and lay them on men’s shoulders; but they themselves will not move them with one of their fingers."
Both passages describe the imposition of burdensome religious rules and regulations by religious leaders, making it difficult for people to follow the law.