Which preposition to use with spareness

for Occurrences 1%

Be ruled by me; exchange thy abject superstition for common sense; thy childish simplicity for discreet policy; thy unbecoming spareness for a majestic portliness; thy present ridiculous and uncomfortable situation for the repute of sanctity, and the veneration of men.

of Occurrences 1%

And the slant of sunlight on lustrous columns, the depths of fretted gold, the dusky ivory of the walls and the pure white of the cenotaphs, so classic in spareness of ornament and simplicity of designthis subtle harmony of form and color gives to the dim rich chapel an air of dream-like unreality.

Which preposition to use with  spareness