Psalm 107:22 mentions songs of joy and thanksgiving sacrifices, directly echoing the singing and glad service in Psalm 100:2.

Psalm 95:2 says 'come before his presence with thanksgiving' and 'joyful noise' — nearly identical to Psalm 100:2.

Psalm 42:4 recalls going to God's house 'with the voice of joy and praise' — the same joyful approach to worship.

Psalm 81:1 also commands singing and shouting for joy to God, reinforcing the theme of joyful worship in Psalm 100:2.

Psalm 27:6 speaks of offering sacrifices of joy and singing praises, closely matching the glad service and singing in Psalm 100:2.

Psalm 63:5 speaks of joyful lips praising God, matching the singing and gladness in Psalm 100:2.

Psalm 71:23 shouts for joy in singing praise, paralleling the joyful singing in Psalm 100:2.

Philippians 4:4 commands 'Rejoice in the Lord always' — a direct New Testament echo of the gladness in serving God.

Deuteronomy 28:47 warns against serving without joy, contrasting the glad service commanded in Psalm 100:2.

2 Chronicles 20:28 shows them coming to the temple with 'psalteries and harps and trumpets' — musical worship like the singing in Psalm 100:2.

Revelation 19:7 calls for rejoicing and giving glory to God, mirroring the joyful worship in Psalm 100:2.

Zephaniah 3:14 calls for singing and shouting with joy, paralleling the gladness and singing in Psalm 100:2.

Nehemiah 12:27 details the wall dedication with gladness, thanksgivings, and singing, directly echoing Psalm 100:2's call.

2 Chronicles 29:30 explicitly says they sang praises with gladness, exactly matching the glad service and singing of Psalm 100:2.

2 Chronicles 5:13 shows unified singing and praising at the temple dedication, directly paralleling the joyful singing before the Lord.

In 1 Kings 8:66, the people depart the temple 'joyful and glad of heart' — echoing the gladness called for in serving the Lord.

Acts 2:46 shows the early church eating with 'gladness' in the temple — a New Testament parallel to serving God with joy.

Deuteronomy 16:11 also commands rejoicing before God, including all people, paralleling the glad service in Psalm 100:2.

Deuteronomy 12:12 commands rejoicing before the Lord, similar to serving with gladness in Psalm 100:2.