Why doesn't this macro work?

[Elvenbane-veknilash (Elvenbane)]

@Nastía-sargeras

I want to cast word of glory on myself first, then flash of life second or whenever there is not enough holy power for word of glory.

@Adreaver-undermine

3. Macros - What can they not do?

Macros cannot make smart decisions for you. They can’t cast spells based on cooldown, or check if a buff is active, or magically fit all your abilities onto one button.

You can do a castsequence but that won’t check for Holy Power (nothing will)

#showtooltip
/castsequence [@player] Word of Glory, Flash of Light