Commentaries:
Robertson's Word Pictures (NT)
And bury my father (kai qayai ton patera mou). The first man was an enthusiast. This one is overcautious. It is by no means certain that the father was dead. Tobit urged his son Tobias to be sure to bury him: "Son, when I am dead, bury me" (Tobit 4:3). The probability is that this disciple means that, after his father is dead and buried, he will then be free to follow Jesus. "At the present day, an Oriental, with his father sitting by his side, has been known to say respecting his future projects: 'But I must first bury my father!'" (Plummer). Jesus wanted first things first. But even if his father was not actually dead, service to Christ comes first.
Other Robertson's Word Pictures (NT) entries containing Matthew 8:21:
Matthew 8:19
Luke 9:57
Luke 9:59
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