Integrity is simplicity, soundness, completeness, sincerity, truthfulness, and uprightness of heart. It describes genuine intentions and faithful conduct rather than mere outward appearance.
The Old Testament uses integrity for sincerity and uprightness before God and people. It is associated with walking honestly, maintaining a sound heart, and acting faithfully. The New Testament does not use the word itself, but related ideas include sincerity, truth, a pure heart, and a single eye.
The Hebrew term may also be translated “upright,” “perfection,” or “soundness.” The plural form appears among the words associated with the high priest’s breastplate and the sacred lots known as the Urim and Thummim.