oun is a conjunction that links a statement, question, or instruction to what precedes as an ensuing point or conclusion.

As a conjunction, οὖν connects what follows with the preceding discussion, introducing an ensuing question, inference, or instruction; the APB variously displays this connection with “therefore,” “then,” “so then,” or leaves it less explicit.

1. Connector for ensuing inference, question, or instruction · dominant

   The form is tagged simply as a conjunction throughout the sample. In 1 Corinthians 10:31 the APB renders an instruction following the preceding discussion, “Therefore, whether you eat or drink or do anything, do all for the glory of God”; in 1 Corinthians 14:15 it introduces the question “What then is the case?” before the stated resolve; and in 2 Thessalonians 2:15 it introduces the exhortation, “So then, brothers, stand firm and hold fast.”

   1 Corinthians 10:311 Corinthians 14:151 Corinthians 16:181 Peter 4:72 Thessalonians 2:15Acts 10:29

In the Anselm Project Bible: The APB commonly marks the connective with “therefore,” while other clauses use “then” or “so then”; These are indicators of the clause-level connection rather than fixed English equivalents.