1 Timothy 1:5.
The veil was the sin-conscience Christ removed at the Cross (literally and Spiritually).
The veil of the mind is a stronghold (imagination against God / Holy Spirit).
And hereby we know that we are of the truth, and shall assure our hearts before him. For if our heart condemn us, God is greater than our heart, and knoweth all things. Beloved, if our heart condemn us not, then have we confidence toward God.