In Saints Peter and John Healing the Lame Man, we see a vibrant scene filled with rich colors. The figures of Saints Peter and John are depicted in dynamic poses, reaching out to a lame man. The background features a bustling crowd, emphasizing the miracle taking place.

The use of light and shadow adds depth to the composition, drawing the viewer's eye to the central action. The painting is executed in oil on canvas, a common medium for the Baroque period. Poussin employs a balanced composition, with the figures arranged in a triangular formation that guides the viewer's gaze. The details in the clothing and expressions of the figures are meticulously rendered, showcasing Poussin's skill in capturing human emotion.

The overall size of the painting is approximately 100 x 130 cm. Nicolas Poussin was a leading figure of the Baroque movement, known for his classical approach to composition and storytelling. This work, created in the 1620s, reflects his interest in biblical themes and moral narratives. An interesting fact about this painting is that it illustrates a moment from the Acts of the Apostles, highlighting the theme of faith and healing.

Poussin's ability to blend drama with clarity makes this piece a notable example of his oeuvre.