This is a great Sacrament. And I am speaking in Christ and in the Church.
This is a great mystery: but I speak concerning Christ and the church.
This mystery is very great, but I speak concerning [the relation of] Christ and the church.
This mystery is great: but I speak in regard of Christ and of the church.
Marriage is a significant allegory, and I’m applying it to Christ and the church.
This is a great sacrament; but I speak in Christ and in the church.