Charles Ellicott Commentary Proverbs 5:4

"But in the end she is bitter as wormwood, Sharp as a two-edged sword." — Proverbs 5:4 (ASV)

Bitter as wormwood.— The absinthium of Revelation 8:11, where, apparently, it is considered as a poison. So God’s message to St. John (Revelation 10:10) was in his mouth sweet as honey , but made his belly bitter: that is, he met with much sorrow and trouble in making it known to men, but through this much tribulation (Acts 14:22) he entered into the kingdom of heaven.