sunistemi, sunistao describes presenting someone or something favorably, and in a few verses standing or holding together.

The predominant usage concerns presenting persons, conduct, or realities favorably: self-presentation, recommendation to others, and the presentation of God’s righteousness or love. A smaller group of perfect forms occurs where people are standing, the earth stands formed, or all things hold together; one verse presents believers as proving themselves pure in a matter.

1. Present favorably or recommend · dominant

   Present active forms repeatedly occur in clauses about self-presentation or commendation: in 2 Corinthians 4:2 the APB renders an open presentation of truth by which the speakers commend themselves, while 2 Corinthians 3:1 contrasts this with letters of recommendation. In Romans 16:1 the first-person present introduces Phoebe to the readers, and Romans 3:5 and Romans 5:8 place the verb with God’s righteousness and love.

   2 Corinthians 3:12 Corinthians 4:22 Corinthians 5:122 Corinthians 10:18Romans 16:1Romans 5:8
2. Stand or hold together · occasional

   Perfect active forms describe a continuing state in three settings: in Luke 9:32 the APB renders two men as “standing with him,” in 2 Peter 3:5 it says that the earth “stands formed,” and in Colossians 1:17 it says that all things “hold together.”

   Luke 9:322 Peter 3:5Colossians 1:17
3. Demonstrate oneself to be · rare

   In 2 Corinthians 7:11, the aorist active plural occurs after the list of responses produced by godly grief; the APB renders the resulting conclusion, “you proved yourselves pure in the matter.”

   2 Corinthians 7:11

In the Anselm Project Bible: The APB often uses “commend” or “commending” in the recommendation and self-presentation passages, including Romans 16:1 and 2 Corinthians 6:4. In the perfect-form passages it varies with “standing,” “stands formed,” and “hold together”; These render the clauses rather than establish a separate English equivalent for every form.