What does the Bible say about faith growth?

In 2 Thessalonians 1:3, the Apostle Paul expresses gratitude that the faith of the believers is growing exceedingly, showing that genuine faith has a dynamic nature. Faith is not static; it must develop and mature over time, especially in the face of trials and adversities. The Thessalonian church, despite being young and facing persecution, demonstrates that true faith is able to endure and even thrive under pressure. This is consistent with the teachings in Ephesians 2:8-9, where faith is seen as a gift from God that must be actively exercised and nurtured.