18 And do not be drunk with wine, in which is dissipation; but be filled with the Spirit,
19 speaking to one another in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord,
20 giving thanks always for all things to God the Father in the name of our Lord Jesus Christ,
drunk (v.18) — A curious use of the word occurs in Homer, where he is describing the stretching of a bull’s hide, which in order to make it more elastic, is soaked [drunk] with fat.” The word, therefore, refers to the condition of a person in which he is soaked with wine. — Wuest, page 127
dissipation (v.18) = lit. “unsavingness” — so, that which has nothing of a saving quality about it but, instead, a destructive one — used generally of an abandoned, debauched, profligate life
be filled (v.18) = to cause to abound, to supply liberally, to flood — tense is “be constantly being filled with the Spirit.”
You get exactly the same results in Colossians 3:16 when the Word of Christ dwells in you richly that you get in Ephesians 5:19 when you are filled with the Spirit. There is an old rule in mathematics that “things equal to the same thing are equal to one another.” If to be filled with the Word is equal in result to being filled with the Spirit, then it should be clear that the Word-filled Christian is the Spirit-filled Christian. as the Word of Christ dwells in us richly, controls all our ways, as we walk in obedience to the Word, the Spirit of God fills, dominates, and controls us to the glory of the Lord Jesus Christ. — Ironside, page 269.
psalms (v.19) = religious songs with a musical accompaniment, especially the Old Testament Psalms
hymns (v.19) = songs of praise
Paul probably did not intend any distinction between the three terms but included them for rhetorical force.
for all things (v.20) — in the context of the chapter, this is referring to the spiritual blessings Christians receive from God