Buddhism consists of three types of ascetic practices. It is the trifecta (sanku) of precepts, precepts (jou), and wisdom (e). Of these, zenjo (zenjo) is related to meditation and zazen, and esegaku (esegaku) is the study of sutras. In other words, both are important ascetic practices. In particular, the Buddha said this about meditation.
>If you meditate, wisdom will occur
If you don't meditate, your wisdom will die
Of things that happen and things that perish
Know these two types of roads
May wisdom increase
It's good to establish yourself
(Katayama Ryoichi, “The Dharma Sutra” No. 282, Okura Publishing)
This was explained by the Buddha about an elder who studied sutron diligently but had no intention of leaving suffering on his own. You are saying that zazen meditation is the practice of leaving suffering, and oral knowledge that is not supported by practice will take you away from enlightenment.
This is where everyone gets lost at least once, but enlightenment isn't about getting anything wonderful. When you let go of everything superfluous, only enlightenment remains. This is called “no income” in Buddhist. It also appears in the Heart Sutra.
Studying is gaining. It's income. Even if you can imagine enlightenment with your income, you cannot become enlightened yourself. I'm just relieved to know that I should go to the left at the next junction in order to get to Tokyo, and it's like I'm not close to Tokyo at all. That may make you feel cheerful temporarily, but in the long run, you haven't been saved at all.
Now, I have to follow up a bit so as not to get into a fight, but apart from zazen, there is no denomination that doesn't have elements of meditation. There are various types of zazen meditation and meditation, but meditation is a broader term.
Zen Buddhism is zazen, and esoteric Buddhism is an abstinence. Historically speaking, nembutsu is also a system where people meditated while saying lumps a long time ago. The Obaku Sect (Obakushu) studied with this sect of Nembutsu Zen, but never actually saw it.
Conversely, even in Zen Buddhism, they sing songs close to nembutsu, such as the names of the ten Buddha, the abbreviated version of Sanpo, and Shobutsu.
Also, in terms of cerebral physiology, it seems that there are survey results showing that sutras reading sutras and zazen had the same effect, so it can be said that they are the same from that point of view. However, there are various ways to read according to the intended purpose, such as reading the sutras (reading the sutras) in a more meditative manner, reading the sutras (kangin) which is closer to studying, and how to read them as repentance, etc., but that is far ahead, isn't it?