All of them were filled with the Holy Spirit and began to speak in other tongues as the Spirit enabled them. Acts 2-4
A teaching philosophy should be grounded in a foundation of service, and to that end the Lord has provided us a model of service-based language training in the bible, via the Holy Spirit. Though the Spirit's methods are miraculous, such extreme methods nevertheless demonstrate our capacity to learn. From the apostle's mastery of foreign tongues, ordinary ESL teachers can take inspiration from the Lord's intervention. We can learn languages, though how well depends on the instructor. The Holy Spirit is an amazing teacher, and we as teacher-servants in Christ must rely on more conventional methods available to us. This website provides resources that are hoped to be of assistance to those serving ESL students.