Good thinking here, Jamie. But then, it could be the church [Bride of Christ] as we understand it, began in John 20:22. Either way, I can receive it.
"Then he remembered the days of old, Moses and his people, saying: 'Where is He who brought them up out of the sea with the shepherd of His flock? Where is He who put His Holy Spirit within them'" (Isaiah 63:11)
Moses was the original pastor of God's congregation to which people were added in the NT congregation.
The OT group was converted to the NT group.
"He has delivered us from the power of darkness and conveyed us into the kingdom of the Son of His love in whom we have redemption through His blood, the forgiveness of sins." (Colossians 1:13)
The pronoun "us" refers to those redeemed by Jesus' blood with regard to the forgiveness of sins.