Theanalogyisthis:WhenbegottenbyGodtheFatherbyreceivingHisHolySpirit,weareputintotheChurch,whichduringthisgestationperiodisourMOTHER.

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The analogy is this: When begotten by God the Father by receiving His Holy Spirit, we are put into the Church, which during this gestation period is our MOTHER.