1 Samuel 18:5יַשְׂכִּיל
So David marched out and prospered in everything Saul sent him to do, and Saul set him over the men of war. And this was pleasing in the sight of all the people, and of Saul’s officers as well.
Job 34:35בְהַשְׂכֵּיל
‘Job speaks without knowledge; his words lack insight.’
Psalm 14:2מַשְׂכִּיל
The LORD looks down from heaven upon the sons of men to see if any understand, if any seek God.
Proverbs 1:3הַשְׂכֵּל
and for receiving instruction in wise living and in righteousness, justice, and equity.
Jeremiah 3:15וְהַשְׂכֵּיל
Then I will give you shepherds after My own heart, who will feed you with knowledge and understanding.”
Daniel 1:17וְהַשְׂכֵּל
To these four young men God gave knowledge and understanding in every kind of literature and wisdom. And Daniel had insight into all kinds of visions and dreams.

Brown-Driver-Briggs

שָׂכַל vb. be prudent

Qal be prudent, circumspect

Hiph.

1. look at

2. give attention to, consider, ponder

3. have insight, comprehension

4. cause to consider, give insight, teach

5. act circumspectly, prudently

6. prosper, have success

7. cause to prosper

Sources: Brown-Driver-Briggs (1906, public domain) from the Open Scriptures Hebrew Lexicon (CC BY 4.0), glosses from STEPBible TBESH (CC BY 4.0); STEPBible TAHOT (Hebrew Bible, Leningrad Codex, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.