In theory this quote is about parenting, but really this seems to apply to pretty much all of life if you swap in "It's" as I've done below:
[It's] all about living by the principle of prepared spontaneity. You don’t really know what’s going to happen next. You don’t really know when you’ll have to enforce a command, intervene in an argument, confront a wrong, hold out for a better way, remind someone of a truth, call for forgiveness, lead someone to confession, point to Jesus, restore peace, hold someone accountable, explain a wisdom principle, give a hug of love, laugh in the face of adversity, help someone complete a task, mediate an argument, stop with someone and pray, assist someone to see his heart, or talk once again about what it means to live together in a community of love.
What you do know is that Scripture gives you the wisdom that you need, and your always-present Messiah gives you the grace that you need to be ready to respond to the moments of opportunity he will give you.
- Paul Tripp