Better, of cowardice. N.T. Comp. Rom 8:15, and see on the Spirit, Rom 8:4, § 5.
Of power (δυνάμεως)
Found in all the Pauline Epistles except Philemon. In Pastorals only here, 2Ti 1:8, and 2Ti 3:5. Not used by our writer in the sense of working miracles, which it sometimes has in Paul. Here, the power to overcome all obstacles and to face all dangers. It is closely linked with the sense of παρρησία boldness.
Of love (ἀγάπης)
See on Gal 5:22.
Of a sound mind (σωφρονισμοῦ)
N.T.o. olxx, oClass. Not self-control, but the faculty of generating it in others or in one's self, making them σώφρονες of sound mind. Comp. Tit 2:4. Rend. discipline. See on σωφροσύνη 1Ti 2:9.