וְהַמְּלָאכָ֗ה הָיְתָ֥ה דַיָּ֛ם לְכָל־הַמְּלָאכָ֖ה לַעֲשׂ֣וֹת אֹתָ֑הּ וְהוֹתֵֽר׃ (ס)
For the stuff they had was sufficient for all the work to make it, and too much.
Read kabbalistic (mystical) interpretation of Exodus 36:7: and classical mystical sources.