Which preposition to use with omnia

in Occurrences 3%

Then is it not substantiall knowledge (as it is in him) but verball, and fantasticall for Omnia in illa ille complexu tenet.

of Occurrences 1%

None of us lads could have written the Opera Omnia of Mr. à Kempis; neither could any of our lasses have assumed male attire like La Pucelle.

Which preposition to use with  omnia