Have you seen in the Scriptures frequently a reference to being upright? Perhaps your translation has, “walk erect,” or “head held high.”

I used to equate uprightness with righteousness, thinking they were merely synonyms, but the more I thought on it, I realized a difference.
Righteousness is being right with God, and that is reflected in uprightness. You can understand the meaning of uprightness by thinking of not being upright, but bent over.

Then consider what the Lord told Israel about what He had broken and how that made the Israelites,

“I am the Lord your God, who brought you out of the land of Egypt, that you should not be their slaves; I have broken the bands of your yoke and made you walk upright” (Leviticus 26:13).

In bondage, they had a yoke upon them, but when the Lord broke the yoke they could then walk upright, the weight having been lifted from their shoulders.

That paints a beautiful symbol of our bondage to sin, or a particular sin, that while in it, we are bowed down, but when we turn to the Lord, seeking His forgiveness, He releases us from that bondage, and we can walk uprightly.