Assurance See also Confidence; Faith; Trust given assurance unto all men, Acts 17:31. gospel came … in the Holy Ghost, and in much assurance, 1 Thes. 1:5. to the full assurance of hope unto the end, Heb. 6:11. true heart in full assurance of faith, Heb. 10:22. know … and shall assure our hearts before him, 1 Jn. 3:19.