"Kippley’s argument was that every covenant has an act whereby the cove-nant is enacted and renewed; and that the marital act is a covenant act. When the marriage covenant is renewed, God uses it to give new life. To renew the marital covenant and use birth control to destory the potential for new life is tantamount to receiving the Eucharist and spitting it on the ground. Kippley showed that the marital act demonstrates the powerful life-giving love of the covenant in a unique way. All the other covenants show God’s love and transmit God’s love, but it is only in the marital covenant that the love is so real and powerful that it communicates life."
January 1, 1970
https://en.wikiquote.org/wiki/Christian_views_on_birth_control