New Revised Standard Version
The priest shall command that one of the birds be slaughtered over fresh water in an earthen vessel.

Contemporary English Version
The priest will order someone to kill one of the birds over a clay pot of spring water.

New American Bible
The priest shall then order that one of the birds be slaughtered over an earthen vessel with fresh water in it.

Douay-Rheims Bible
And he shall command one of the sparrows to be immolated in an earthen vessel over living waters.

And he shall command one of the sparrows to be immolated in an earthen vessel over living waters.

earthen vessel

Leviticus 14:50 And having immolated one sparrow in an earthen vessel, over living waters,

Numbers 5:17 And he shall take holy water in an earthen vessel, and he shall cast a little earth of the pavement of the tabernacle into it.

2 Corinthians 4:7 But we have this treasure in earthen vessels, that the excellency may be of the power of God and not of us.

2 Corinthians 5:1 For we know, if our earthly house of this habitation be dissolved, that we have a building of God, a house not made with hands, eternal in heaven.

2 Corinthians 13:4 For although he was crucified through weakness, yet he liveth by the power of God. For we also are weak in him: but we shall live with him by the power of God towards you.

Hebrews 2:14 Therefore because the children are partakers of flesh and blood, he also himself in like manner hath been partaker of the same: that, through death, he might destroy him who had the empire of death, that is to say, the devil: