Charles Ellicott Commentary Leviticus 26:21

"And if ye walk contrary unto me, and will not hearken unto me, I will bring seven times more plagues upon you according to your sins." — Leviticus 26:21 (ASV)

And if ye walk contrary unto me. —That is, continue the defiance of the Divine law, and rebel against God’s authority. The third warning, contained in Leviticus 26:21-22, threatens them with destruction by wild beasts.

Seven times more plagues. —That is, a still greater number. (See Leviticus 26:18.)

According to your sins. —This increased number of scourges will be in proportion to their sins, since their defiance, in spite of the two preceding classes of punishments, aggravates and enhances their guilt.