Hospitality was a responsibility and privilege highly valued by the Jewish people. In offering hospitality, we may be entertaining angels (Heb 13:2) or even God Himself (Gn 18:17ff). Abraham and Sarah, for example, offered hospitality to God and two angels. As a result, God promised them they would miraculously have a son, although both were almost a hundred years old (see Gn 18:10ff). Hospitality is the breeding ground of promise, blessing, and miracles.
As awesome as hospitality is, Jesus claimed that prayer is even better (Lk 10:42). This was a surprising revelation. Jesus even maintained the necessity of praying always (Lk 18:1; cf 1 Thes 5:17). He did this Himself, praying early in the morning and late at night (Mk 1:35; Lk 22:39ff). Jesus prayed in such a new way that people who had prayed for years asked Him to teach them to pray (Lk 11:1).
After Jesus ascended into heaven, His disciples caught onto Jesus’ message on prayer and “devoted themselves to constant prayer” for nine days (Acts 1:14). The Church was born after this nine-day gestation period of prayer. From that point on, the Spirit has empowered the followers of Jesus to devote themselves to prayer (see Acts 2:42).