From the Orthodox Study Bible
2 Timothy 2:1-10✠ This passage is read on days commemorating a martyr and for the Finding of the Head of John the Baptist (February 24 and May 29).
2 Timothy 2:2Paul establishes a clear chain of witnesses to oral tradition. Christian tradition is for all believers; it is “catholic,” belonging to the whole Church, and needs to be passed down to others unhindered. This stands in clear contrast to the elitism of the major religions of the first-century Roman world, including gnosticism and the various mystery religions.
2 Timothy 2:3-6Faithful ministry requires discipline: obedience, self-denial, and struggle. Our icons (examples) here are the soldier (vv. 3, 4), the athlete (v. 5), and the farmer (v. 6).
2 Timothy 2:8-13Verses 11–13 may be an early baptismal hymn. Ministry is based on union with Christ and immovable loyalty to Him. The end, for the minister and his hearers, is life with Christ in the eternal Kingdom.
John 15:17✠ This passage is read on days commemorating a holy martyr.
John 15:18-25The term world is used in several distinct ways in Scripture. In some cases, it refers to all that is glorious, beautiful, and redeemable in God’s creation (3:16). Other times, it refers to that which is finite in contrast to that which is eternal (11:9; 18:36). In still other instances, as here, it indicates all that is in rebellion against God (see also 8:23). The rebellion of the world against God reveals several things: (1) While union with Christ brings love, truth, and peace, it also brings persecution, because the world hates love and truth (v. 19). (2) The world hated Christ; therefore, it will hate all who try to be Christlike (v. 20). (3) The world hates Christ because it neither knows nor desires to know the Father (vv. 21–24). (4) Hatred for Jesus Christ is irrational and unreasonable, for Christ brings love and mercy; thus, Christ is hated without a cause (v. 25).
John 15:26With respect to God’s working salvation in the world, the Son sends the Holy Spirit from the Father. With respect to the divine nature, the Holy Spirit eternally proceeds from the Father alone. In other words, the Holy Spirit receives His eternal existence only from the Father. In conformity with Christ’s words, the Nicene-Constantinopolitan Creed confesses belief “in the Holy Spirit, the Lord, the giver of life, who proceeds from the Father.” While the Son is begotten of the Father alone, the Holy Spirit proceeds from the Father alone; the source, the Fountainhead, of both Persons is the Father.