2 Kings 20:2
Then Hezekiah turned his face to the wall and prayed to the LORD, saying,
1 Kings 8:30
And listen to the plea of your servant and of your people Israel, when they pray toward this place. And listen in heaven your dwelling place, and when you hear, forgive.
Psalm 50:15
and call upon me in the day of trouble; I will deliver you, and you shall glorify me."
Isaiah 38:2-3
Then Hezekiah turned his face to the wall and prayed to the LORD,
Matthew 6:6
But when you pray, go into your room and shut the door and pray to your Father who is in secret. And your Father who sees in secret will reward you.