Gloss “equë” by Ardalambion (Helge Fauskanger)

Could someone give me an example sentence with that word? I don't understand why we need it. "That" is "i" and "sa", and say is "quet-". If I would like to say "he says (that) ...", I will say "quetis (sa) ...". So why do we need eque?

Here's an example: Eque Arakorno: 'Et Earello Endorenna utúlien.'

Do we "need" it? It's a way of expressing something. The fact that we can also say the same thing in other ways does not mean we cannot use them.

To me personally eque feels more formal and archaic; it reminds me of English quoth.