1 Samuel 20:26

Nevertheless Saul did not speak anything that day, for he thought, “It is an accident, he is not clean, surely he is not clean.”

Leviticus 15:5

Anyone, moreover, who touches his bed shall wash his clothes and bathe in water and be unclean until evening;

Leviticus 11:24

‘By these, moreover, you will be made unclean: whoever touches their carcasses becomes unclean until evening,

Leviticus 11:27

Also whatever walks on its paws, among all the creatures that walk on all fours, are unclean to you; whoever touches their carcasses becomes unclean until evening,

Leviticus 7:20-21

But the person who eats the flesh of the sacrifice of peace offerings which belong to the Lord, in his uncleanness, that person shall be cut off from his people.

Leviticus 11:31

These are to you the unclean among all the swarming things; whoever touches them when they are dead becomes unclean until evening.

Leviticus 11:40

He too, who eats some of its carcass shall wash his clothes and be unclean until evening, and the one who picks up its carcass shall wash his clothes and be unclean until evening.

Leviticus 15:16-17

Now if a man has a seminal emission, he shall bathe all his body in water and be unclean until evening.

Leviticus 15:19-21

When a woman has a discharge, if her discharge in her body is blood, she shall continue in her menstrual impurity for seven days; and whoever touches her shall be unclean until evening.

Numbers 19:16

Also, anyone who in the open field touches one who has been slain with a sword or who has died naturally, or a human bone or a grave, shall be unclean for seven days.

1 Samuel 16:5

He said, “In peace; I have come to sacrifice to the Lord. Consecrate yourselves and come with me to the sacrifice.” He also consecrated Jesse and his sons and invited them to the sacrifice.

Treasury of Scripture Knowledge

Summary

Nevertheless Saul spake not any thing that day: for he thought, Something hath befallen him, he is not clean; surely he is not clean.

Bible References

He is not clean

Leviticus 7:21
When anyone touches anything unclean, whether human uncleanness, or an unclean animal, or any unclean detestable thing, and eats of the flesh of the sacrifice of peace offerings which belong to the Lord, that person shall be cut off from his people.’”
Leviticus 11:24
‘By these, moreover, you will be made unclean: whoever touches their carcasses becomes unclean until evening,
Leviticus 15:5
Anyone, moreover, who touches his bed shall wash his clothes and bathe in water and be unclean until evening;
Numbers 19:16
Also, anyone who in the open field touches one who has been slain with a sword or who has died naturally, or a human bone or a grave, shall be unclean for seven days.