'Tablet' in the Bible

“Oh, that the words I now speak were written!Oh, that they were recorded in a scroll!

Do not let mercy and kindness and truth leave you [instead let these qualities define you];Bind them [securely] around your neck,Write them on the tablet of your heart.

Bind them [securely] on your fingers;Write them on the tablet of your heart.

Then the Lord said to me, “Take for yourself a large tablet [for public display] and write on it in ordinary characters: Belonging to Maher-shalal-hash-baz.

Now, go, write it on a tablet before themAnd inscribe it on a scroll,So that it may serve in the time to comeAs a witness [against them] forevermore.