Commentaire sur L’Exode 36:6

ויכלא is an expression for withholding.

LET NEITHER MAN NOR WOMAN MAKE ANY MORE ‘MLACHAH’ (WORK). Money [and possessions] are called mlachah. Similarly: whether he have not put his hand ‘bimlecheth’ (the goods of) his neighbor;⁵¹Above, 22:7. according to the pace of ‘hamlachah’ (the cattle) that are before me;⁵²Genesis 33:14. ‘v’chol hamlachah’ (but everything) that was of no account and feeble, that they destroyed utterly.⁵³I Samuel 15:9. Thus the meaning of this verse is that they should not bring anything more for the sacred work. Scripture, however, states, Let them not make any more ‘mlachah’ [using the verb “to make”] in order to include therein the women, that they should no longer spin the goats’ hair.⁵⁴Above, 35:26. Thus even the act of bringing is here referred to as “making,” and [it was now Moses’ wish] to restrain them altogether [from bringing more donations, and from making any work in their homes, as explained].

אל יעשו עוד מלאכה לתרומת הקדש, he did not proclaim that no more donations should be brought. But he did proclaim that no more work, such as spinning, weaving, etc, intended for materials used in the construction of the Tabernacle should be begun. Also timber which had been brought in the correct dimensions with the carved parts should not be brought anymore. Compare 35,24 which discusses the need of treatment of both skins and trees.