Frank J. Wilstach, comp. A Dictionary of Similes. 1916.

Spotless

Spotless as snow.
—Robert Bloomfield

Spotless as the flow’ring thorn.
—Robert Burns

Heart as spotless as the doves.
—John Gilbert Cooper

Spotless as an angel.
—Thomas Heywood

Spotless as the noon.
—Thomas Heywood

Spotless as a Glastonbury nun.
—Richard Hovey

Spotless as Saint Dorothy.
—Richard Hovey

Spotless as lilies.
—Henry W. Longfellow

Spotless and sincere, as the chaste vows of the holy vestals are.
—Thomas Otway

Spotless as a lily’s leaf.
—A. J. Ryan