Getting Christians to think highly of themselves is a devilish scheme.
How contrary to Scripture is a haughty child of God.
For thus says the One who is high and lifted up,
who inhabits eternity, whose name is Holy:
“I dwell in the high and holy place, and also with him
who is of a contrite and lowly spirit,
to revive the spirit of the lowly,
and to revive the heart of the contrite.”
Isaiah 57:15 ESV
Also: Proverbs 6:16-17