Philippians 4:18 describes the gifts Paul received from the Philippians — the concrete situation of abundance that prompts his contentment statement.

In 1 Corinthians 4:9-13, Paul describes being hungry, thirsty, and poorly clothed — direct examples of the abasement and need he mentions in Philippians 4:12.

In 2 Corinthians 6:4-10, Paul's list of hardships with 'sorrowful yet always rejoicing' directly illustrates his secret of contentment in all circumstances.

2 Corinthians 11:27 lists hunger, thirst, cold, and nakedness — the very hardships Paul learned to be content in.

In 2 Corinthians 12:9-10, Paul declares contentment with weaknesses and hardships — the same secret of being content in any situation.

In Esther 5:13, Haman's abundance means nothing due to hatred; Paul's secret of contentment contrasts this dissatisfaction.

Acts 28:10 shows Paul receiving honors and supplies from the Maltese, illustrating the 'abounding' side of his contentment in all circumstances.

1 Corinthians 4:11 lists Paul's hardships (hungry, thirsty, homeless) — specific examples of the 'being abased' he mentions.

Hebrews 13:5 commands contentment with what you have, echoing the same virtue Paul says he has learned in all circumstances.

In Luke 6:25, Jesus warns that being full now leads to hunger; Paul's contentment in both states avoids that reversal.