Psalms 100 — Jamieson–Fausset–Brown
100:1–2
1-2. With thankful praise, unite service as the subjects of a king (Psa 2:11, 12).
100:3
3. To the obligations of a creature and subject is added that of a beneficiary (Psa 95:7).
100:4
4. Join joyfully in His public worship. The terms are, of course, figurative (compare Psa 84:2; 92:13; Is 66:23). Enter--or, "Come with solemnity" (Psa 95:6).
100:5
5. The reason: God's eternal mercy and truth (Psa 25:8; 89:7).