Exodus 40:31-33

40:31 Moses and Aaron and his sons would wash their hands and their feet from it. 40:32 Whenever they entered the tent of meeting, and whenever they approached the altar, they would wash, just as the Lord had commanded Moses.

40:33 And he set up the courtyard around the tabernacle and the altar, and put the curtain at the gate of the courtyard. So Moses finished the work.

tn The construction is the infinitive construct with the temporal preposition and the suffixed subjective genitive. This temporal clause indicates that the verb in the preceding verse was frequentative.

tn This is another infinitive construct in a temporal clause.

tn In this explanatory verse the verb is a customary imperfect.