Colossians 4:15 names Laodicea and the church there — the same city Epaphras worked hard for, giving local context.

Colossians 4:16 instructs the Laodicean letter to be read there — directly linking to Epaphras's labor for that church.

Colossians 2:1 shows Paul's struggle for Laodicea and Colossae — the same churches Epaphras labored for, reinforcing mutual effort.

Revelation 1:11 lists Laodicea among the seven churches — the same city Epaphras worked for, linking Paul's era to John's.

Revelation 3:14-18 rebukes Laodicea for lukewarmness — contrasting Epaphras's earnest labor with the church's later complacency.