'Merely' in the Bible

Therefore the word of the Lord to them will be [merely monotonous repetitions]:“Precept upon precept, precept upon precept,Rule upon rule, rule upon rule,Here a little, there a little.”That they may go and stumble backward, and be broken, ensnared, and taken captive.

“As often as it passes through, it will seize you;For morning after morning it will pass through, by day and by night,And it will be sheer terror to understand what it means.”

Then the Lord said: "Because these people draw near with their mouths and honor me with their lips, but their hearts are far from me, worship of me has become merely like rules taught by human beings.

Scarcely have they been planted,Scarcely have they been sown,Scarcely has their stock taken root in the earth,But He merely blows on them, and they wither,And the storm carries them away like stubble.

"Is this the kind of fast that I have chosen, merely a day for a person to humble himself? Is it merely for bowing down one's head like a bulrush, for lying on sackcloth and ashes? Is this what you call a fast, an acceptable day to the LORD?

"If you keep your feet from trampling the Sabbath, from pursuing your own interests on my holy day, if you call the Sabbath a delight and the LORD's holy day honorable; and if you honor it by not going your own ways and seeking your own pleasure or speaking merely idle words,