Admonitive

Again, this kind of suffering to the devout Fathers did seem many ways significant, or full of instructive and admonitive emblems; […]

Wale’ typically occurs in S-final position and conveys variously dubitative (X is possible, but I doubt it), admonitive (X is possible so be careful; X is the case, so take note) or, when used with imperatives, exhortative (hurry up and X).