“For the earth... bringeth forth herbs meet for them by whom it is dressed... but that which beareth thorns and briers is rejected... whose end is to be burned” (Heb. 6:7-8).
If we don’t tend a garden, the thorns grow. If I am neglecting my garden (my spiritual life), weeds (fruits of sin) grow and spread into others’ gardens. This requires others to have to work harder at keeping their gardens weeded. Worse, it may cause them to be discouraged and leave the care of their gardens, allowing them to be overrun by weeds.
From special meetings, 1999 (adapted)