TSK · Deuteronomy 23:11

and anyone who carries their carcass must wash his clothes and will be unclean until the evening.

Anyone who touches his bed must wash his clothes, bathe in water, and be unclean until evening.

Purity Regulations for Male Bodily Discharges“‘When the man with the discharge becomes clean from his discharge he is to count off for himself seven days for his purification, and he must wash his clothes, bathe in fresh water, and be clean.

and he must wash in water any clothing or leather that has semen on it, and it will be unclean until evening.

Wash away my wrongdoing! Cleanse me of my sin!

I will sprinkle you with pure water and you will be clean from all your impurities. I will purify you from all your idols.

The Pharisee was astonished when he saw that Jesus did not first wash his hands before the meal.

This was a symbol for the time then present, when gifts and sacrifices were offered that could not perfect the conscience of the worshiper.

And this prefigured baptism, which now saves you– not the washing off of physical dirt but the pledge of a good conscience to God– through the resurrection of Jesus Christ,