But I will wait [here] in Ephesus until the Day of Pentecost [Note: This was an annual Jewish festival, held at spring harvest time];

and drank the same spiritual drink [i.e., water coming from a rock supernaturally. See Ex. 17:6]. For they drank from the spiritual rock that followed them, and that rock was Christ. [Note: Besides actual water, they were refreshed from the spiritual presence of Christ].