Romans 5:4

“And patience experience, etc..] As tribulations tend to exercise and increase patience, so patience being exercised and increased, enlarges the saints' stock and fund of experience; of the love and grace of God communicated to them at such seasons; of his faithfulness in fulfilling his promises; of his power in supporting them; and of their own frailty and weakness; and so are taught humility, thankfulness, and resignation to the will of God: and experience, hope; hope is a gift of God's grace, and is implanted in regeneration, but abounds, increases, and becomes more strong and lively by experience of the love, grace, mercy, power, and faithfulness of God.”

“patience worketh experience--rather, "proof," as the same word is rendered in Co2 2:9; Co2 13:3; Phi 2:22; that is, experimental evidence that we have "believed through grace." and experience--"proof." hope--"of the glory of God," as prepared for us. Thus have we hope in two distinct ways, and at two successive stages of the Christian life: first, immediately on believing, along with the sense of peace and abiding access to God (Rom 5:1); next, after the reality of this faith has been "proved," particularly by the patient endurance of trials sent to test it. We first get it by looking away from ourselves to the Lamb of God; next by looking into or upon ourselves as transformed by that…”

“And patience, experience - Patient endurance of trial produces experience. The word rendered “experience” (δοκιμήν dokimēn) means trial, testing, or that thorough examination by which we ascertain the quality or nature of a thing, as when we test a metal by fire, or in any other way, to ascertain that it is genuine. It also means approbations, or the result of such a trial; the being approved, and accepted as the effect of a trying process. The meaning is, that long afflictions borne patiently show a Christian what he is; they test his religion, and prove that it is genuine. Afflictions are often sent for this purpose, and patience in the midst of them shows that the religion which can…”

“And patience works more experience of the sincerity of our grace, and of God's power and faithfulness. Romans 5:5”

“patience: Rom 15:4; Co2 1:4-6, Co2 4:8-12, Co2 6:9, Co2 6:10; Jam 1:12; Pe1 1:6, Pe1 1:7, Pe1 5:10 and experience: Jos 10:24, Jos 10:25; Sa1 17:34-37; Psa 27:2, Psa 27:3, Psa 42:4, Psa 42:5, Psa 71:14, Psa 71:18-24; Co2 4:8-10; Ti2 4:16-18 Romans 5:5”