Waldau was hired part-time by the Pentecostal congregation of Knutby in March 1992.

With about 1,000,000 members (2007), it is the largest Pentecostal Christian congregation in South Korea, and the world.

These people sought out their own places of worship and founded hundreds of distinctly Pentecostal congregations.

There were 170 Pentecostal congregations in 1993.

They were forced to seek their own places of worship, and soon there were hundreds of distinctly Pentecostal congregations.

Create unity in doctrine and in identifying Pentecostal congregations.

The first conference of Swiss Pentecostal congregations took place in 1910.

As leader of the largest Pentecostal congregation in the nation's capital, he was a national leader.

St Antholin's was declared redundant in 2001 and sold to a Pentecostal congregation.

In Pentecostal congregations, prayer is often done by speaking in a foreign tongue, a practice now known as glossolalia.