A young man with long hair and a beard kneels in a dark, rocky landscape, his gaze lifted upwards towards a glowing patch of sky at the upper left. He wears a rough garment of animal skin draped over one shoulder, leaving his muscular arms exposed, and a deep red cloak falls in heavy folds around his lower body and across the ground. The background is filled with dense, brooding clouds tinged with yellow light, and the silhouette of sparse trees and jagged rocks emerges from the gloom behind him.

The figure’s expression is one of rapt devotion, his eyes wide and lips parted as if in prayer or awe, illuminated by a shaft of light that models his features and casts deep shadows across his face and torso. The artist uses a restrained palette of earthy browns, greys, and ochres, punctuated by the vivid red of the cloak, creating a dramatic contrast between the figure and the dark wilderness around him. The brushwork is smooth and controlled, with subtle transitions of tone in the skin and fabric, while the background is painted in broader, softer strokes that evoke the wild, unsettled setting.

Every detail, from the texture of the animal skin to the delicate folds of the drapery, is rendered with careful attention, yet the overall effect is one of spiritual intensity rather than mere description. The subject is John the Baptist, shown alone in the wilderness, as identified by the reed cross and the animal skin clothing traditionally associated with him. The National Gallery attributes the work to a period between 1660 and 1670.