'Heavy' in the Bible

Thy father made our yoke grievous: now therefore ease thou somewhat the grievous servitude of thy father, and his heavy yoke that he put upon us, and we will serve thee.

And the young men that were brought up with him spake unto him, saying, Thus shalt thou answer the people that spake unto thee, saying, Thy father made our yoke heavy, but make thou it somewhat lighter for us; thus shalt thou say unto them, My little finger shall be thicker than my father's loins.

For whereas my father put a heavy yoke upon you, I will put more to your yoke: my father chastised you with whips, but I will chastise you with scorpions.

And answered them after the advice of the young men, saying, My father made your yoke heavy, but I will add thereto: my father chastised you with whips, but I will chastise you with scorpions.