Because the things that were offered did suffice, and were too much.

for the work they had was sufficient for all the work to do it, and it was too much.

and the work hath been sufficient for them, for all the work, to do it, and to leave.

For the material they had was enough and more than enough for all the work which had to be done.

because what was offered was sufficient and was more than an abundance.

Materia enim erat ad sufficientiam eis pro toto opere ad faciendum illud, et superabundabat.

For the stuff they had was sufficient for all the work to make it,.... The gold, silver, brass, and precious stones, the wood and yarn, which had been already brought in, were sufficient for everything they were ordered to make:
and too much; a great deal more than would be used; much would remain after all was wrought: what was done with this is not said, whether it was returned to the people, or laid up for the use of the tabernacle and service, as might hereafter be wanted; which latter seems most probable.

"And there was enough (דּיּם their sufficiency, i.e., the requisite supply for the different things to be made) of the property for every work to make it, and over" (lit., and to leave some over). By this liberal contribution of freewill gifts, for the work commanded by the Lord, the people proved their willingness to uphold their covenant relationship with Jehovah their God.