וַיֹּ֛אמֶר נִרְפִּ֥ים אַתֶּ֖ם נִרְפִּ֑ים עַל־כֵּן֙ אַתֶּ֣ם אֹֽמְרִ֔ים נֵלְכָ֖ה נִזְבְּחָ֥ה לַֽיהוָֽה׃
But he said: ‘Ye are idle, ye are idle; therefore ye say: Let us go and sacrifice to the LORD.
Read kabbalistic (mystical) interpretation of Exodus 5:17: and classical mystical sources.