'God appointed' in the Bible

All nations shall serve him and his son and his grandson until the [appointed] time [of punishment] for his own land comes; then many nations and great kings shall make him their servant.

Some of those who are [spiritually] wise and have insight will fall [as martyrs] in order to refine, to purge and to make those among God’s people pure, until the end time; because it is yet to come at the time appointed [by God].

He commanded us to preach to the people [both Jew and Gentile], and to solemnly testify that He is the One who has been appointed and ordained by God as Judge of the living and the dead.