Yes, trust in Jehovah was the basis for Ebed-melech’s courageously coming to the aid of a hated prophet. For this, the Ethiopian eunuch did not lose his reward.

For I shall without fail furnish you an escape, and by the sword you will not fall; and you will certainly come to have your soul as a spoil, because you have trusted in me.” (Jer. 39:16-18) According to these words, Ebed-melech would witness the destruction of Jerusalem that Jeremiah had foretold. Yet, he would not need to fear it. As Ebed-melech had viewed the life of Jeremiah as precious, so Jehovah God would regard Ebed-melech’s life as precious and would preserve him alive.