1 Corinthians 7:30

And they that weep, as though they wept not; and they that rejoice, as though they rejoiced not; and they that buy, as though they possessed not;

They that weep ... wept not (cf. 2 Corinthians 6:10) - not letting grief gain uncontrolled mastery.

They that buy ... possessed not - (cf. Isaiah 24:1.) Christ specifies as the condemning sin of Sodom not merely open profligacy, but that "they bought, they sold," etc., as men whose all was in this world (Luke 17:28). "Possessed" [ katechontes (G2722)] implies a holding fast of a possession: this the Christian will not do, for his "enduring substance" is elsewhere (Hebrews 10:34).