Psalm 27:14 — "Wait on the LORD: be of good courage, and he shall strengthen thine heart: wait, I say, on the LORD" — is advice for a specific kind of waiting: the waiting that cannot be resolved by human action. Estrangement from an adult child is exactly this kind of waiting. The Hebrew qavah — 'wait' — means to bind together, to be stretched toward something. Waiting for a child to return is not passive resignation — it is an active, directed orientation toward God and toward the possibility of restoration.
Proverbs 15:1 — "A soft answer turneth away wrath: but grievous words stir up anger" — applies specifically to the moments when contact breaks through the silence. The words spoken in those moments have power to soften or to harden. The parent who has been holding pain in silence often has a backlog of grievance that the first conversation can release destructively. Proverbs names what the first words should be.
Commentary is from a charismatic Protestant perspective, drawing on KJV text and public-domain sources including Spurgeon, Andrew Murray, and Matthew Henry.