How do we know the signs of an apostle are true?

In 2 Corinthians 12:12, Paul refers to the 'signs of an apostle' that were evident during his ministry among the Corinthians. These signs were not just miraculous events but included the quality of patience in dealing with the congregants’ immaturities and difficulties. The presence of miraculous signs and wonders served to affirm Paul's apostleship, but the accompanying character traits, such as love and endurance, played a crucial role in establishing his legitimacy. Thus, true apostolic signs are validated through both extraordinary acts and the consistent embodiment of Christ-like virtues.