▁not ▁infant ▁bapt ism , ▁corresponds ▁to ▁the ▁nature ▁of ▁the ▁new ▁c oven ant , ▁stands ▁alone ▁as ▁enjo ined ▁by ▁the ▁Lord ' s ▁authority , ▁and ▁alone ▁is ▁pract ised ▁by ▁the ▁apost les . ▁ ▁Some what ▁controvers ial ly , ▁Sp ils bury ▁assert ed ▁that ▁any ▁other ▁bapt ism ▁is ▁not ▁bapt ism ▁at ▁all ▁but ▁a ▁fault y ▁corner stone ▁that ▁would ▁" br ing ▁down ▁the ▁church ." ▁ ▁He ▁said ▁that ▁Protest ants , ▁therefore , ▁who ▁retained ▁infant ▁bapt ism ▁kept ▁themselves ▁" in ▁the ▁company ▁of ▁Ant ich rist ." ▁ ▁They ▁must ▁return ▁to ▁Rome ▁or ▁go ▁forward ▁to ▁what ▁he ▁saw ▁as ▁" the ▁true ▁constitution ▁of ▁the ▁church ." ▁ ▁New ▁Testament ▁church ▁Sp ils bury ' s ▁first ▁work , ▁The ▁Law full ▁Sub ject ▁of ▁Bapt isme , ▁also ▁de alt ▁at ▁length ▁with ▁the ▁particular ▁task ▁of ▁fitting ▁and ▁prepar ing ▁the ▁matter , ▁that ▁is ▁how ▁s inners ▁are ▁made ▁fit ▁for ▁const itut ing ▁a ▁church . ▁ ▁In ▁the ▁final ▁analysis , ▁Sp ils bury ▁saw ▁four ▁elements ▁that ▁merged ▁in ▁the ▁const itut ing ▁of ▁a ▁" New ▁Testament ▁church ". ▁ ▁First , ▁he ▁argued , ▁must ▁come ▁the ▁Word ▁of ▁God ▁" which ▁is ▁to ▁fit ▁and ▁prepare ▁the ▁matter ▁for ▁the ▁form ." ▁The ▁pre aching ▁of ▁the ▁Word ▁assault s ▁the ▁pride ▁of ▁man , ▁smooth s ▁his ▁" hard ▁and ▁rough ▁tur bul ent " ▁spirit ,