and no stedfast forseinge;
And certes, that were an abusioun, 990
That god shuld han no parfit cleer witinge
More than we men that han doutous weninge.
But swich an errour up-on god to gesse
Were fals and foul, and wikked corsednesse.

`Eek this is an opinioun of somme 995
That han hir top ful heighe and smothe y-shore;
They seyn right thus, that thing is not to come
For that the prescience hath seyn bifore
That it shal come; but they seyn that therfore
That it shal come, therfore the purveyaunce 1000
Wot it biforn with-outen ignoraunce;

`And in this manere this necessitee
Retorneth in his part contrarie agayn.
For needfully bihoveth it not to be
That thilke thinges fallen in certayn 1005
That ben purveyed; but nedely, as they seyn,
Bihoveth it that thinges, whiche that falle,
That they in certayn ben purveyed alle.

`I mene as though I laboured me in this,
To enqueren which thing cause of which thing be; 1010
As whether that the prescience of god is
The certayn cause of the necessitee
Of thinges that to comen been, pardee;
Or if necessitee of thing cominge
Be cause certeyn of the purveyinge. 1015

`But now ne enforce I me nat in shewinge
How the ordre of causes stant; but wel wot I,
That it bihoveth that the bifallinge
Of thinges wist biforen certeynly
Be necessarie, al seme it not ther-by 1020
That prescience put falling necessaire
To thing to come, al falle it foule or faire.

`For if ther sit a man yond on a see,
Than by necessitee bihoveth it
That, certes, thyn opinioun soth be, 1025
That wenest or coniectest that he sit;
And ferther-over now ayenward yit,
Lo, right so it is of the part contrarie,
As thus; (now herkne, for I wol not tarie):

`I seye, that if the opinioun of thee