Exodus 38:23

38:23 and with him was Oholiab son of Ahisamach, of the tribe of Dan, an artisan, a designer, and an embroiderer in blue, purple, and scarlet yarn and fine linen.

Exodus 39:3

39:3 They hammered the gold into thin sheets and cut it into narrow strips to weave ¹  them into the blue, purple, and scarlet yarn, and into the fine linen, the work of an artistic designer.

[39:3]  ¹ tn The verb is the infinitive that means “to do, to work.” It could be given a literal rendering: “to work [them into] the blue….” Weaving or embroidering is probably what is intended.