1 Samuel 20:26

And Saul spake not anything in that day, for he said, It is an accident; he is not clean; for he is not clean.

Leviticus 15:5

And a man who shall touch upon his bed, shall cleanse his garments and shall wash in water, and be unclean till evening.

Leviticus 11:24

And for these ye shall be unclean: all touching upon their carcass shall be unclean till evening.

Leviticus 11:27

And every one going upon his hands among all beasts going upon four, they are unclean to you: every one touching upon their carcass shall be unclean till evening.

Leviticus 7:20-21

And the soul which shall eat the flesh of the sacrifice of peace which to Jehovah, and his uncleanness upon him, that soul was cut off from its people.

Leviticus 11:31

These are unclean to you, among all the creeping: every one touching upon them in their dying, shall be unclean till even.

Leviticus 11:40

And he eating from its carcass shall cleanse his garments, and be unclean till the evening; and he lifting up its carcass shall wash his garments and be unclean till the evening.

Leviticus 15:16-17

And a man, when the effusion of seed shall go forth from him, and he washed in water all his flesh, and was unclean till the evening

Leviticus 15:19-21

And when a woman, shall be flowing, and her flowing shall be blood in her flesh, seven days shall she be in her uncleanness: and all touching upon her shall be unclean till the evening.

Numbers 19:16

And every one who shall touch upon the face of the field, upon the wounded of the sword, or upon the dead, or upon the bone of man, or upon a grave, shall be unclean seven days.

1 Samuel 16:5

And he will say, Peace: to sacrifice to Jehovah I came: be ye consecrated and come with me to the sacrifice. And he will consecrate Jesse and his sons, and call for 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
And when a soul shall touch upon anything unclean, upon the uncleanness of man, or upon unclean cattle, or upon any abominable unclean thing, and eat from the flesh of the sacrifice of peace, which is to Jehovah, that soul was cut off from its people.
Leviticus 11:24
And for these ye shall be unclean: all touching upon their carcass shall be unclean till evening.
Leviticus 15:5
And a man who shall touch upon his bed, shall cleanse his garments and shall wash in water, and be unclean till evening.
Numbers 19:16
And every one who shall touch upon the face of the field, upon the wounded of the sword, or upon the dead, or upon the bone of man, or upon a grave, shall be unclean seven days.