I always love four-line poetry... but the only reason I knew what it was about was because of the title... not sure if you wanted it that way, if so; good job!!!
Ok the line "whose table earth-", that line was a bit aukward, try rephasing it or something.
Overall, great job!!
What then? Shall we sit idly and say
the night has come; it is no longer day.
Yet as the evening twilight fades away,
the sky is filled with stars, invisible to day.