In 2019, Pastor Leow was called by God to preach the Revelation message in preparation for the return of the Lord Jesus. In November 2019, Pastor Leow and his wife Zona Lee went to the US and began to serve as itinerant missionaries; they started praying for Revival of Asbury Theological Seminary and Asbury University, participating in prayer meetings, street evangelism and serving the homeless and the poor. In September 2022 the couple moved to New York City and served the homeless and poor. In light of the Covid-19 pandemic, wars, food shortages, etc., they believe that the day of the Lord Jesus' second coming is near. Their hope is that they may work with the Lord Jesus to win the End-Time spiritual war under the mighty power of the Holy Spirit, so that the glorious grace of the Father will be praised.