Create a digital art representation of Ephesians 3:8, which reads: 'Unto me, who am less than the least of all saints, is this grace given, that I should preach among the Gentiles the unsearchable riches of Christ;'. Visualize this with symbolic elements such as a humble figure representing the speaker, a radiant and ungraspable treasure representing the 'unsearchable riches of Christ', and an audience of diverse figures symbolizing 'Gentiles'.