Gill's points came on 6 field goals, 2 three pointers and 1 of 2 free throws during the game.
Darius Maddox added 18. St. John's fell to 0-1 overall while Gonzaga improved their record to 4-1.
Player of the game
Gonzaga will host St. Mary's Ryken on Friday Dec. 21 at 4:30pm.