Proverbs 3:5–6

Trust in YHWH with all your heart, and do not lean on your own understanding

⁵Trust in YHWH with all your heart, and on your own understanding do not lean.
⁶In all your ways know him, and he will make straight your paths.

In its context

³Let not loyal love and faithfulness abandon you; bind them around your neck; write them on the tablet of your heart;

⁴and you will find favor and good regard in the eyes of Elohim and of man.

…

⁷Do not be wise in your own eyes; fear YHWH and turn away from evil.

⁸It will be healing to your navel, and refreshment to your bones.

בְּטַחbetach· trust
Trust: lean on someone or something and feel secure.
יְהוָהyehva· YHWH
The personal name of the God of Israel, written in Hebrew with four letters, Y-H-W-H, without vowels. Out of reverence Jews stopped pronouncing it and read "Adonai" (Lord), so many Bibles put "the LORD" or "Jehovah". This translation keeps the four letters. The name is related to the verb "to be" (Exodus 3:14-15). He is not a god other than Elohim: "YHWH Elohim" is the same Creator God, called by his name.
לִבֶּlibe· heart
Heart. In Hebrew it is not only the place of feelings: it is the center of the person, where one thinks, decides and wills; also the middle of something.
בִּינָתְbinat· understanding
Understanding: the ability to comprehend and to tell one thing from another.
תִּשָּׁעֵןtishaen· lean, rest
Lean on, recline to rest; rely on.
דְּרָכֶיderache· way
Way, road, journey. Figuratively, the way one lives or acts.
דָעֵdae· know
Know. Not only having a fact: it is knowing by experience and closely; also recognize, care for, make known. So Hebrew also uses it for the intimate union of a man and his wife ("he knew his wife").
יְיַשֵּׁרyeyasher· be right, be straight
Be right: be straight or level; with "in the eyes of," seem right to someone.
אֹרְחֹתֶיorchote· path, way
Way, path; one's usual manner. "The way of women" is menstruation. Also a caravan.