It is singular that there is no preaching mentioned as having been attempted in Perga, or anywhere along the coast, but that the two evangelists seem to have gone at once across the great mountain range of Taurus to Antioch of Pisidia.
A striking suggestion is made by Ramsay to the effect that the reason was a sudden attack of the malarial fever which is endemic in the low-lying coast plains, and for which the natural remedy is to get up among the mountains. If so, the journey to Antioch of Pisidia may not have been in the programme to which John Mark had agreed, and his return to Jerusalem may have been due to this departure from the original intention. Be that as it may, he stands for us as a beacon, warning against hasty entrance on great undertakings of which we have not counted the cost, no less than against cowardly flight from work, as soon as it begins to involve more danger or discomfort than we had reckoned on.
John Mark was willing to go a-missionarying as long as he was in Cyprus, where he was somebody and much at home, by his relationship to Barnabas; but when Perga and the climb over Taurus into strange lands came to be called for, his zeal and courage oozed out at his finger-ends, and he skulked hack to his mother's house at Jerusalem. No wonder that Paul thought not good to take with them him who withdrew from them.' But even such faint hearts as Mark's may take courage from the fact that he nobly retrieved his youthful error, and won back Paul's confidence, and proved himself profitable to him for the ministry.'
