Wherein ye greatly rejoice, though now for a season, if need be, ye are in heaviness through manifold temptations:
Wherein - in which salvation. Greatly rejoice, х agalliasthe (G21)] - 'exult with joy.' Salvation is realized by faith (1 Peter 1:9), as so actually present as to cause exulting joy in spite of afflictions.
For a season, х oligon (G3641)] - 'for a little.'
If need be - `since (God sees) it is needed' for His glory and our salvation. God sends affliction on His people only where there is need (Job 5:6). One need not lay a cross on himself, but only "take up" that which God imposes ("his cross"). 2 Timothy 3:12 is not to be pressed too far. Not every believer, nor every sinner, is afflicted. Some falsely think that notwithstanding our forgiveness in Christ, an expiation of sin by suffering is still needed.
Ye are in heaviness, х lupeethentes (G3076)] - 'ye were grieved.' The 'grieved' is past; the 'exulting joy' present: because the realized joy of coming salvation makes present grief seem a thing of the past. At the first shock ye were grieved, but now by anticipation ye rejoice.
Through - `IN:' the element in which the grief has place.
Manifold - of various kinds (1 Peter 4:12-13).
Temptations - `trials' testing faith.