It is indeed the standard evangelical assumption that the LoF speaks to the afterlife” but an alternative perspective is to view this as the temporal judgement in the here and now of AD70… where for many life quite literally ended in the DoJ — or even metaphorically speaking including those taken captive in deportation to Rome, never again to know the presence of God associated with the Temple; EXILE was DEATH and this with NO promised resurrection as per Babylon… thus this was the SECOND and final demise of OC Israel.
“Whoever loves OR practices a lie” in the biblical context was relative life under the old covenant mode of existence, out of which many a NC believer had initially come… and then, to their peril, a goodly number were returning.
Col 3:9 Do not lie to one another, since you have put off the old man (the OC) with his deeds,…
1Tim 4:1-3 Now the Spirit expressly says that in latter times (of the OC) some will depart from the faith, giving heed to deceiving spirits and doctrines of demons, speaking lies in hypocrisy, having their own conscience seared with a hot iron, forbidding to marry, and commanding to abstain from foods which God created to be received with thanksgiving by those who believe and know the truth.
These were the Judaisers and a blight on the early church… one half of two main concerns Paul, for example, confronts in his epistles.