{If God permit} (eanper epitrep(8869) ho theos). Condition of
the third class with eanper (note per indeed). See  1Co 16:7 
(ean ho kurios epitreps(8869)) and  Ac 18:21  (	ou theou
thelontos). It is not an idle form with the author. He means
that he will go on with the argument and not attempt to lay again
the foundation (the elements). Moffatt takes him to mean that he
will teach them the elements at a later time ( 13:23 ) if the way
opens, a less probable interpretation.