Jeremiah 5:24
Neither say they in their heart, Let us now fear the LORD our God, that giveth rain, both the former and the latter, in his season: he reserveth unto us the appointed weeks of the harvest. Neither say they in their heart, Let us now fear the LORD our God, that giveth rain, both the former and the latter, in his season: he reserveth unto us the appointed weeks of the harvest.
The former and the latter rain are the outpouring of the Holy Spirit at the beginning and at the end of the Christian age. The former rain was given at the commencement of the age in the time of the sowing of the gospel seed, to cause it to germinate and take good root, when the church enjoyed the gifts of the Holy Spirit. The latter rain will be poured out at the close of the dispensation to ripen the golden harvest for the garner of God, when the gifts of the Holy Spirit will be manifested in all their fullness.
When the people of God attain to primitive faith and practice under the last message, the latter rain will be poured out and all the gifts will be revived. The rarity of the gifts since the great apostasy is due to the errors and unbelief of the church, not to God taking these blessings from the church.