The alliance with Israel mars the good record of Jehoshaphat's reign

2 Chronicles 20:31-37
So Jehoshaphat reigned over Judah. He followed the ways of his father Asa and did not stray from them; he did what was right in the eyes of the Lord. The high places, however, were not removed, and the people still had not set their hearts on the God of their ancestors.
Later, Jehoshaphat king of Judah made an alliance with Ahaziah king of Israel, whose ways were wicked. 
Eliezer son of Dodavahu of Mareshah prophesied against Jehoshaphat, saying, “Because you have made an alliance with Ahaziah, the Lord will destroy what you have made.” The ships were wrecked and were not able to set sail to trade.
Only the alliance with Israel mars(damage) the good record of Jehoshaphat's reign.
Why?
Jehoshaphat did what was right in the eyes of the Lord. But there were some faults. One is the people still had not set their hearts on the God of their ancestors. The high places were not removed.
Second Jehoshaphat made an alliance with Ahaziah, once again he negotiated with the wicked king of Israel.  So the Eliezer warned him what they made will be destroyed. And it has come true.
God's word is always right and will be done. People in peace and property is easy to do something in his own smart idea. 
Any a little idols or sin in our heart may induce more faulty matter.
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丘壇未除去，顯出約沙法的缺失。雖然他的信仰是好的。犯錯的共通點是可以依靠其他勢力的時候，就依靠人的勢力。
迦南的信仰已經紮根在以色列人心中超過百年，已經無法除去。所以只有將他們趕出以色列離開這地，拆除後再重新建造。
約沙法又和亞哈謝結盟，人有一點自己的能力就想要走自己的路。世界的方法是靠人、靠車、靠馬。因為人看得見。現在也是看國家權力大的就想要依靠強國。只有對我有利的國家就想倚靠。
基督徒是依靠神還是依靠人，還是要到沒有指望的時候才仰望神。然而即使在沒有指望時，人卻不見得會倚靠神。猶大的最後幾個王，不知依靠神，而去倚靠埃及、亞述。
今天我們也是外交上想靠美國，靠大陸，生活上靠政府、找到好工作，要靠關係，才能有好生活?
丘壇不能廢去，因為如何拜由我們決定，其實就是自己做主。
神有時破壞我們的工作，我們要感恩，可能我們所做的不合神的心意。我們常常不能廢去我們內心的丘壇。
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How?
Pray to the Lord keep me fearing of the Lord, for God knows what we are thinking and our actions.