On the other hand, the two main meanings of integrity for us are sole dedication and perfection. For the first, we should seek in Scripture for holiness and consecration or dedication. A person of integrity is a holy person. So the biblical integrity is acquired in a process of purification from the sin that steals integrity of every human being, and it can be lost in the fight against the flesh. Bothers me, therefore, the humanistic concept of an inherent integrity. We must start from that every human being lacks integrity. Considering this, Integrity is under the dominion of grace.
But it is the second usage that is particularly interesting. It speaks of the livelihood of integrity as something perfect, flawless. This is the deep meaning of the word 'peace', eirene in Greek, literally meaning 'tie together'. Not necessarily two people being tied together to live in peace (that won't work), but our desires, plans and actions so connected in a single purpose that we do not feel divided, neither are disturbed nor fall apart. Integrity is having the peace that the Lord provides.
Peace and grace of the Lord are the integrity that we need to be the vital organism that bears fruit for His glory.
.............................................Commented after Drucker, Peter F. (2009-10-13). The Daily Drucker (p. 3). HarperCollins. Kindle Edition.