{Grieve not the Holy Spirit of God} (m(8820)lupeite to pneuma
to hagion tou theou). "Cease grieving" or "do not have the habit
of grieving." Who of us has not sometimes grieved the Holy
Spirit? {In whom} (en h(9369)). Not "in which." {Ye were sealed}
(esphragisth(8874)e). See  1:13  for this verb, and  1:14  for
apolutr(9373)e(9373), the day when final redemption is realized.