Plowing time in Palestine is in November and December, when the wind blows commonly from the North.

Proverbs 20:4 Parallel Commentaries

Regeneration the Work of God.
"The hearing ear, and the seeing eye, the Lord hath even made both of them."--Prov. xx. 12. "The hearing ear, and the seeing eye, the Lord hath even made both of them." This testimony of the Holy Spirit contains the whole mystery of regeneration. An unregenerate person is deaf and blind; not only as a stock or block, but worse. For neither stock nor block is corrupt or ruined, but an unregenerate person is wholly dead and a prey to the most fearful dissolution. This rigid, uncompromising, and absolute …
Abraham Kuyper—The Work of the Holy Spirit

"Boast not Thyself of to Morrow, for Thou Knowest not what a Day May Bring Forth. "
Prov. xxvii. 1.--"Boast not thyself of to morrow, for thou knowest not what a day may bring forth." As man is naturally given to boasting and gloriation in something (for the heart cannot want some object to rest upon and take complacency in, it is framed with such a capacity of employing other things), so there is a strong inclination in man towards the time to come, he hath an immortal appetite, and an appetite of immortality; and therefore his desires usually stretch farther than the present …
Hugh Binning—The Works of the Rev. Hugh Binning

Manner of Covenanting.
Previous to an examination of the manner of engaging in the exercise of Covenanting, the consideration of God's procedure towards his people while performing the service seems to claim regard. Of the manner in which the great Supreme as God acts, as well as of Himself, our knowledge is limited. Yet though even of the effects on creatures of His doings we know little, we have reason to rejoice that, in His word He has informed us, and in His providence illustrated by that word, he has given us to …
John Cunningham—The Ordinance of Covenanting