3795. for all consanguinities and affinities on earth derive their origins from marriage, from whence parents, children, brothers, sisters, relations, kindreds, receive their denomination, whether nearer or more remote; in like manner in the heavens, where the love of the Lord towards heaven and the church is compared to a marriage; whence conjugial love is the [fundamental] principle and thence all loves draw their origin and are derived, and form consanguinities and affinities, which are similar derivations of loves. Hence now it appears that the primary bond of conscience is founded in conjugial love.