(35) A sore botch.--A boil, as in Deuteronomy 28:27.

In the knees.--Comp. Ezekiel 7:17; Ezekiel 21:7, "All knees shall be weak as water."

Verses 35-46. - Third group. Moses reverts to the calamities already threatened (ver. 27), for the purpose of leading on the thought that, as such diseases separated the sufferer from the society of his fellows, so Israel should be separated from God and brought under the dominion of strangers as a punishment for rebellion and apostasy. Verse 35. - A sore botch; an incurable leprosy, affecting not merely the joints and extremities, but the whole body. Such an affliction would exclude a man from all fellowship and from all covenant privileges of the nation. So Israel, rendered unclean by their sin, should be cut off from covenant union with God.

28:15-44 If we do not keep God's commandments, we not only come short of the blessing promised, but we lay ourselves under the curse, which includes all misery, as the blessing all happiness. Observe the justice of this curse. It is not a curse causeless, or for some light cause. The extent and power of this curse. Wherever the sinner goes, the curse of God follows; wherever he is, it rests upon him. Whatever he has is under a curse. All his enjoyments are made bitter; he cannot take any true comfort in them, for the wrath of God mixes itself with them. Many judgments are here stated, which would be the fruits of the curse, and with which God would punish the people of the Jews, for their apostacy and disobedience. We may observe the fulfilling of these threatenings in their present state. To complete their misery, it is threatened that by these troubles they should be bereaved of all comfort and hope, and left to utter despair. Those who walk by sight, and not by faith, are in danger of losing reason itself, when every thing about them looks frightful.The Lord shall smite thee in the knees, and in the legs, with a sore botch, that cannot be healed,.... Which in those parts as it is very painful, so is not easily cured; and this which is threatened was incurable by the art of man, as others in Deuteronomy 28:27; and which should not stop there in the lower parts of the body, but proceed and spread:

from the sole of thy foot unto the top of thy head; and so be filled with them, as Job was with his boils and ulcers.