"Thank God I Found You" garnered mixed reviews from music critics. Jose F. Promis of Allmusic wrote that the song is "[a] lush, classic Carey-styled adult contemporary ballad, with uplifting lyrics and a sea of soaring vocals."[17] The Austin American-Statesman viewed the song as a "dramatic closer".[22] Arion Berger of Rolling Stone praised the song's production and the harmony that 98 Degrees' contributed.[8] Chuck Campbell of The Daily News was also positive stating the song was a "grandiose" album-closer.[23] Steve Jones of USA Today wrote that Carey excelled in the song.[15] Melissa Ruggieri of the Richmond Times-Dispatch noted that Carey found solace in the song.[24] Anthony Johnson, also of the Richmond Times-Dispatch wrote that the track is a "surefire winner".[25]
