Here is the first verse, according to Salmon and then according to Métraux (neither of whom wrote glottal stops or long vowels):

Long vowels are written double, aa, and long nasal vowels with a tilde, ã.

Its use in Sanskrit is therefore to write vowels that cannot be otherwise written alone: e.g., อา or อี.

It condenses words by omitting silent letters and only writing long vowels, and initial short vowels.

There are two systems for writing long vowels with syllable-final consonants.

Or perhaps, the Phoenicians were simply following the lead of the Egyptians, who never wrote vowels.

In writing vowels Teuthonista uses much more diacritics than letter symbols.

However, Ugaritic was unusual among early abjads in also writing vowels after glottal stop.

The new orthography tries to consistently write long vowels and geminated consonants with double letters.

Some indicate that modern vowel variance is to be expected because Hebrew does not have written vowels.