The LORD shall open to you his good treasure, the heaven to give the rain to your land in his season…
This refers first to the rain. The Lord will give this in its season. Rain is the emblem of all those celestial refreshings which the Lord is ready to bestow upon His people. Oh, for a copious shower to refresh the Lord's heritage! We seem to think that God's treasury can only be opened by a great prophet like Elijah, but it is not so, for this promise is to all the faithful in Israel, and, indeed, to each one of them. O believing friend, "the Lord shall open unto thee His good treasure." Thou, too, mayest see heaven opened, and thrust in thy hand and take out thy portion, yea, and a portion for all thy brethren round about thee. Ask what thou wilt, and thou shalt not be denied, if thou abidest in Christ, and His words abide in thee. As yet thou hast not known all thy Lord's treasures, but He shall open them up to thy understanding. Certainly thou hast not yet enjoyed the fulness of His covenant riches, but He will direct thy heart into His love, and reveal Jesus in thee. Only the Lord Himself can do this for thee; but here is His promise, and if thou wilt hearken diligently unto His voice, and obey His will, His riches in glory by Christ Jesus shall be thine.
( C. H. Spurgeon.)
Parallel VersesKJV: The LORD shall open unto thee his good treasure, the heaven to give the rain unto thy land in his season, and to bless all the work of thine hand: and thou shalt lend unto many nations, and thou shalt not borrow.
WEB: Yahweh will open to you his good treasure in the sky, to give the rain of your land in its season, and to bless all the work of your hand: and you shall lend to many nations, and you shall not borrow.