Jesus said, "And call no man your father on earth, for you have one Father, who is in heaven" (Matt. 23:9). Several sentences later he said, "Fill up, then, the measure of your fathers" (Matt. 23:32). So clearly verse 9 was not meant to be a prohibition against the use of the word "father" for anyone other than the first person of the trinity. Rather, it was a prohibition against the misuse of the title. For more details, see our tract Call No Man Father.