10 Here too the verb is Hiphil (now imperfect) meaning “bring near” the altar. The choice of this verb indicates that they were not merely being brought near, but that they were being formally presented to Yahweh as the offerings were.
11 This is the washing referred to in Lev 8:6. This is a complete washing, not just of the hands and feet that would follow in the course of service. It had to serve as a symbolic ritual cleansing or purifying as the initial stage in the consecration. The imagery of washing will be used in the NT for regeneration (Titus 3:5).

In other versions

You shall bring Aaron and his sons to the entrance of the tent of meeting and wash them with water.

Then bring Aaron and his sons to the entrance to the tent of meeting and wash them with water.

Bring Aaron and his sons to the entrance to the tent of meeting and wash them with water.

“Present Aaron and his sons at the entrance of the Tabernacle, and wash them with water.

And you will bring Aaron and his sons to the entrance of the tent of assembly, and you will wash them with water.

And Aaron and his sons thou shalt bring unto the door of the tabernacle of the congregation, and shalt wash them with water.

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