**2 Corinthians 4:16-18 **
***16 So we do not lose heart. Though our outer self is wasting away, our inner self is being renewed day by day. 17 For this light momentary affliction is preparing for us an eternal weight of glory beyond all comparison, 18 as we look not to the things that are seen but to the things that are unseen. For the things that are seen are transient, but the things that are unseen are eternal.
The word for light means a weightless trifle and affliction refers to intense pressure. From a human perspective, Paul’s own testimony lists a seemingly unbearable litany of sufferings and persecutions he endured throughout his life (2 Corinthians 11: 23-33), yet he viewed them as weightless and lasting for only a brief moment. The word for weight often refers to a heavy mas. For Paul, the future glory he would experience with the Lord far outweighed any suffering he experienced in this world (Romans 8:17-18; 1 Peter 1:6-7). Paul understood that the greater the suffering, the greater would be his eternal glory (1 Peter 4:13)
Endurance is based on a person’s ability to look beyond the physical to the spiritual, beyond the present to the future, and beyond the visible to the invisible. Believers must look past what is temporary-what is perishing i.e., the things of this world. Pursuing the Father, Christ, the Holy Spirit, and the souls of men should consume the believer.
The term lose heart refers to abandoning oneself to surrender. That was not how Paul responded to the continual attacks he faced. The task of ministering the New Covenant was too noble to lose heart over (Galatians 6:9; Ephesians 3:13). Since God had called him to proclaim it, Paul could not abandon his calling. Instead, he trusted God to strengthen him (Act 20:24; 1 Corinthians 9:16-17; Colossians 1:23, 25).
The physical body is in the process of decay and will eventually die. On the surface Paul was referring to the normal aging process, but with the added emphasis that his lifestyle sped up that process. While not an old man, Paul wore himself out in ministry, both in the effort and pace he maintained, plus the number of beatings and attacks he absorbed from his enemies (2 Corinthians 6:4-10, 11:23-27). The inner self refers to the soul of every believer i.e., the new creation-the eternal part of the believer (Ephesians 4:24; Colossians 3:10). Being renewed is the growth and maturing process of the believer and is constantly occurring. While the physical body is decaying, the inner self of the believer continues to grow and mature into Chrlstlikeness (Ephesians 3:16-20).