firstly
1 occurrence across the corpus
NT Apocrypha/Pseudepigrapha
Gospel of Nicodemus, Part I: The Acts of Pilate 2:3
The elders of the Jews answered and said unto Jesus: What shall we see? Firstly, that thou wast born of fornication; secondly, that thy birth in Bethlehem was the cause of the slaying of children; thirdly, that thy father Joseph and thy mother Mary fled into Egypt because they had no confidence before the people.