He is married to Maria Steivoort.
Permission for the marriage has been obtained in Ossenisse on September 3, 1679.Source 1
otr. 3 sep 1679; bdg. Joost Verbiest jm van Ossenisse; br. Maria Steivoort wed[uwe] van Adriaen Schoockaert van Ossenisse; opm. getuijgen Joost Verbiest de vader, Dingon Lambrecht van Creveril
Ossenisse ondertrouw 1648-1682 https://www.geneaknowhow.net/script/zee/Ossenisse_ondertrouw_1648-1682.pdf