'Upright in Heart' in the Bible

But the priests were too few, so that they could not flay all the burnt-offerings: wherefore their brethren the Levites helped them, till the work was ended, and until the other priests had sanctified themselves: for the Levites were more upright in heart to sanctify themselves than the priests.

My defense is from God, who saveth the upright in heart.

For lo, the wicked bend their bow, they make ready their arrow upon the string, that they may privily shoot at the upright in heart.

Be glad in the LORD, and rejoice, ye righteous: and shout for joy, all ye that are upright in heart.

O continue thy loving-kindness to them that know thee; and thy righteousness to the upright in heart.

The righteous shall be glad in the LORD, and shall trust in him; and all the upright in heart shall glory.

But judgment shall return to righteousness: and all the upright in heart shall follow it.

Light is sown for the righteous, and gladness for the upright in heart.