Understanding Colossians 1:24: the atonement is finished. But not the tribulations that come with Bible Translation and Missions. Linda Goble, the v.p. of AFII.org, corresponded with Elizabeth Elliott, not knowing at the time that she would have to go through sufferings similar.

The Greek text: Νῦν χαίρω ἐν τοῖς παθήμασιν ὑπὲρ ὑμῶν καὶ ἀνταναπληρῶ τὰ ὑστερήματα τῶν θλίψεων τοῦ Χριστοῦ ἐν τῇ σαρκί μου ὑπὲρ τοῦ σώματος αὐτοῦ, ὅ ἐστιν ἡ ἐκκλησία.

The patient in critical condition in a hospital bed — Figure 1: Linda the v.p. of AFII filling up in her body what is left of His Sufferings.

Close-up view of the wound — Figure 2: Close-up view of terrible wound on her back and on-going need for your prayers.

In one sentence: the atonement wounds have been healed by His resurrection, but the tribulations of missionaries that come with bringing His Saving Wounds before the nations are not all healed, and Paul gladly takes his portion of them so the body of Messiah bears less.