1935年隆比罕姊妹接受真耶穌教會真理後，到附近的許多村莊傳福音，她原是個多神論者，拜大樹、大石頭，並具有邪術異能，後來信奉天主教。

斗亞蘭教會的陳約翰執事向她見證真道，帶領她歸真。1938年中，加達延安加接受真道後，有許多人也跟隨信主，其中一位巴志拉撒（今西門執事）是隆比罕姊妹之兒子，因病蒙主醫治而受洗。

之前他曾激烈的反對真道，曾經用腳踢其正在禱告中的母親，並未踢中目標，反而失足跌倒，昏迷不省人事。此區的信徒是以西門執事家為聚會所。

1942至1945年間，第二次大戰影響真道進展。戰爭結束後，會眾議決建蓋會堂，於1946年建立首座會堂，按立隆比罕為女執事、西門及雅各二位執事。因信徒人數激增，於1951年再重建一所較寬闊的會堂。此村莊的村民大部份都接受了真道，並分設了丁寶及所摩頓二處教會。

灣谷教會進展迅速，並與鄰近的五間教會通力合作傳揚福音。現今會堂已經重建，擁有教室及廚房等的設備。現有信徒人數132人，三位執事。

Wangkod Church

After Sis. Lumbihan accepted the truth of the True Jesus Church, she went to the nearby villages to propagate the gospel. Prior to this, she was a pagan, worshiping big trees, big rocks and possessed evil supernatural power. Later she embraced the Roman Catholic faith. It was Dn. John Chin of the Tuaran Church who testified to her and led her to the truth .

After Kadayang Bin Angkal accepted the truth in the mid 1938, many followed suite. Among them was Bacheh Lasak（now Dn. Simon） son of Sis. Lumbihan after he was healed of his serious ailment. Prior to his conversion, he was very much against the truth to the extend of trying to kick his own mother while she was praying, but he missed and fell and became unconscious. The believers in this area made use of Dn. Simons house as the place of worship.

The progress of the church then was affected by the Second World War from 1942 to 1945. After the War ended, the congregation resolved that a church be constructed. The first church was completed in 1946 followed by the ordinations of Sis. Lumbihan as Deaconess, Simon and James as Deacons. Due to the ever increase of believers, another much bigger church was constructed in the year 1951. Most of the villagers had accepted the truth and had also branched out two churches to Timbou and Somondon respectively.

The Wangkod Church progressed swiftly and propagated the truth with the collaboration of the five churches nearby. The Church has been rebuilt with classrooms and kitchen facilities. The present membership is 132 with 3 Deacons.