Worry about tomorrow

所 以 不 要 為 明 天 憂 慮 ． 因 為 明 天 自 有 明 天 的 憂 慮 ． 一 天 的 難 處 一 天 當 就 夠 了 。 Then have no care for tomorrow: tomorrow will take care of itself. Take the trouble of the day as it comes. (Mathew 6:34)

Act proactively, think ahead and contingency plan are similar modern ideas promoted widely. If you are focus on them too much, it will give you negative effects. 1) it hurts your body; 2) your energy will be depleted; 3) it lower your efficiency of work; 4) it affect your altitude towards others; 5) it lowers your faithfulness on our God.

Worry usually makes you stand still. Concern is your drive to act.