15 We do not boast out of our depth, that is, in the labor of others; but tikvateinu is that, as your emunah grows, our sphere of Shlichus (Divine mission) among you will also be enlarged,
16 So that we may abundantly proclaim the Besuras HaGeulah to the regions beyond you, without boasting in someone else's Messianic chalutz accomplishments.
17 But HAMMIT HALLELYIT HALLEL; ("The one boasting let him boast" in the L-rd.) [Jer 9:23,24; Ps 34:2; 44:8; 1C 1:13];
18 For it is not the one commending himself that has the haskama (approval), but it is the one to whom [Moshiach] Adoneinu gives the haskama. [1C 4:4 5]