Know For Sure

Everything we know for sure has before taken place.
Prophecy does have its lure
but is a wild-goose chase.
Everything we know for sure has systematic check.
Estimate does have its lure
but is a sorry wreck.
Everything we know for sure has definite outcome.
Conjecture does have its lure
but is a sugarplum.
Everything we know for sure has evidential proof.
Axiom does have its lure
but is a clumsy spoof.
Everything we know for sure has determined status.
Inference does have its lure
but is a gap hiatus.
Everything we know for sure has scientific fact.
Religion does have its lure
but is a frail contract.