...are "needs-based" epistles (personal letters) to a particular church. For Apologetics Bible Study see here.
Well, how about Ps. 136:9, which says "To him who alone doeth great wonders..."? Thats not very hard: the adjective "great" -- not used in 2 Thess. -- makes all the difference. Others can do smaller wonders. Only God does great ones. (Note that the list following in Psalms is of miracles of creation of the earth and heavens.)