Generate a digital art representation of a scene inspired by Matthew 15:38 from the Bible. Depict around four thousand men of diverse descents such as Caucasian, Hispanic, Middle-Eastern, South Asian, and Black, all seated and eating. Further in the image, include women of various descents and children of multiple genders, all actively participating in the feast. Make sure the scene captures the community essence and the event grandeur. Use a balanced color palette to highlight the unity and harmony of the scene.