Shared ground
Psalm 138:3 presents a compact testimony: the speaker remembers a specific “day” of trouble when he called out to God, and God answered (explicit textual claims). The reported answer is not described in detail as a change of circumstances; instead, the verse highlights an inward effect—God “encouraged” the speaker by putting strength “in my soul,” meaning in the person’s inner self (explicit textual claims; cf. ).
The verse therefore links prayer and divine response to inner strengthening. It portrays God’s help as personal and experienced at the level of resolve and endurance, not only at the level of external outcomes (textual emphasis).
Where interpretation differs
Some read “in the day” as stressing immediacy: God’s answer came right away, within the same day. Others take it more loosely as “in that time/that season,” emphasizing that God answered in connection with the crisis without making a strict timing claim (interpretive pressure point).
Some also differ on what “answered” implies. One reading expects that an answer includes a concrete change in events, with inner courage mentioned as one part of that help. Another reading takes the verse’s wording as intentionally focusing on inner reassurance and strengthening, whether or not outward circumstances changed quickly (interpretive pressure point).
Why the disagreement exists
The Hebrew phrase for “in the day” can function either as a literal time marker or as a way of pointing to a remembered occasion. Likewise, “answered” can describe God’s response in more than one form, and the second line specifically names inner strengthening, which can be taken as the main content of the answer or as one effect among others.
What this passage clearly contributes
This verse clearly contributes a theology of answered prayer that includes inner fortitude: God’s response reaches the “soul,” the core of a person’s inner life, and provides strength there (explicit textual claims; cf. ). It also presents prayer as a real address to God (“I called… you answered”), with the response credited directly to God rather than to the speaker’s self-generated resilience (explicit textual claims).