Shared ground
Paul makes a clear contrast: love does not “fail” (it does not collapse or come to an end), while prophecies, various languages, and knowledge are temporary (v.8). The text treats these impressive spiritual activities as real and meaningful in the present, but not lasting.
Paul’s reason is also explicit: “we know in part, and we prophesy in part” (v.9). Present knowledge and prophetic speech give true insight, but only in a limited measure.
Finally, Paul sets a future turning point: “when the complete has come,” the “partial” will be done away with (v.10). The argument depends on a basic sequence: partial now → complete later → partial no longer needed.
Where interpretation differs (only where needed)
The main question is what Paul means by “the complete” (v.10).
One view says “the complete” refers to the final stage of God’s plan, when believers see and know with fullness. On this reading, the ending of partial gifts belongs to the future completion of history.
Another view says “the complete” refers to a nearer completion within the church’s life, such as the maturing of the community’s understanding or the arrival of a more settled, full form of teaching. On this reading, the partial gifts can be expected to fade as the church’s “complete” state arrives in a more historical way.
Why the disagreement exists
Paul does not define “the complete” in these verses. He only states the logic (partial vs. complete) and the outcome (the partial ends). Because the phrase is open-ended here, interpreters look to the broader argument in chapters 12–14 and to Paul’s wider timeline to decide whether “complete” points mainly to the end of the age or to an earlier kind of completion.
What this passage clearly contributes
Explicitly, it ranks durability: love outlasts the gifts named in v.8. It also frames many forms of “knowing” and “prophesying” as partial by nature in the present (v.9), and it ties their ending to a future arrival of “the complete” (v.10). As theological inference (going beyond what is directly stated), the passage supports the idea that spectacular or highly valued gifts are not the ultimate measure of spiritual maturity, because their role is time-bound while love is not. See also 1 Corinthians 12:31.