World Wide Study Bible
a Bible passage
The unfolding of your words gives light;
it imparts understanding to the simple.
130. The entrance—literally, "opening"; God's words, as an open door, let in light, or knowledge. Rather, as Hengstenberg explains it, "The opening up," or, "explanation of thy word." To the natural man the doors of God's Word are shut. Lu 24:27, 31; Ac 17:3; Eph 1:18, confirm this view, "opening (that is, explaining) and alleging," &c.
unto the simple—those needing or desiring it (compare Ps 19:7).