Psalms 139:4 Halakhah

כִּ֤י אֵ֣ין מִ֭לָּה בִּלְשׁוֹנִ֑י הֵ֥ן יְ֝הוָ֗ה יָדַ֥עְתָּ כֻלָּֽהּ׃

For there is not a word in my tongue, But, lo, O LORD, Thou knowest it altogether.

Read halakhic rulings (Jewish law) on Psalms 139:4: and classical halakhic sources.