'Upright' in the Bible

and he saith to teach the sons of Judah 'The Bow;' lo, it is written on the book of the Upright: --

How much more, when evil men have put an upright person to death, in his house, sleeping on his bed, will I take payment from you for his blood, and have you cut off from the earth?

I was also upright before him, and have kept myself from mine iniquity.

With the merciful thou wilt shew thyself merciful, and with the upright man thou wilt shew thyself upright.

The God of Israel said, the word of the Rock of Israel came to me: When an upright king is ruling over men, when he is ruling in the fear of God,