Shared ground
These verses present a turn from danger to a settled resolve. The speaker chooses ongoing hope and intends not only to keep praising God but to expand that praise (v.14). He also commits to public, verbal testimony (“my mouth”) about God’s righteousness and God’s rescue, described as constant (“all day”) (v.15). The passage treats God’s deeds as so many or so great that the speaker cannot fully measure or count them (v.15). Finally, the speaker plans to “come with” God’s mighty acts in view and to speak about God’s righteousness as the central theme—giving God the credit (v.16).
Where interpretation differs
Two phrases can be read in more than one responsible way.
First, “add to all of your praise” can mean increasing the amount of praise (more frequent or more expansive praise) or deepening its content (more reasons and fuller description). Both fit the basic claim that the speaker intends growth in praise, not mere maintenance.
Second, “I will come with the mighty acts of the Lord Yahweh” may picture arriving at a worship gathering with God’s past deeds ready to be recounted, or it may refer more generally to approaching life’s challenges with God’s powerful works in mind.
Why the disagreement exists
The Hebrew expressions are brief and image-based. “Add to praise” does not specify whether the increase is mainly quantity or richness. “Come with” does not name a destination, so readers infer either a sanctuary setting (public testimony in worship) or a broader daily-life setting (testimony as a constant posture). The end phrase “even of yours alone” likewise leaves room for whether “alone” mainly stresses exclusive credit to God or the main topic of speech.
What this passage clearly contributes
This unit links hope, praise, and testimony: hope is not described as silent or private, but as expressed through ongoing speech about who God is and what God does (vv.14–15). God’s righteousness here is presented as something to be talked about alongside God’s rescue, suggesting “righteousness” includes God’s reliable, right way of acting in the world, not merely an abstract quality (vv.15–16). The speaker’s inability to measure God’s saving acts underscores abundance and human limits in reporting them (v.15). The closing focus (“yours alone”) makes the testimony God-centered rather than self-focused or shared-credit praise (v.16). See also Psalm 40:5 for the idea of deeds too many to count and Psalm 145:4–7 for generational testimony about God’s mighty acts.