Isaiah 26:3-4 (ESV)
3 You keep him in perfect peace
whose mind is stayed on you,
because he trusts in you.
4 Trust in the Lord forever,
for the Lord God is an everlasting rock.
Psalm 37:1-11 (ESV)
He Will Not Forsake His Saints
37 Fret not yourself because of evildoers;
be not envious of wrongdoers!
2 For they will soon fade like the grass
and wither like the green herb.
3 Trust in the Lord, and do good;
dwell in the land and befriend faithfulness.
4 Delight yourself in the Lord,
and he will give you the desires of your heart.
5 Commit your way to the Lord;
trust in him, and he will act.
6 He will bring forth your righteousness as the light,
and your justice as the noonday.
7 Be still before the Lord and wait patiently for him;
fret not yourself over the one who prospers in his way,
over the man who carries out evil devices!
8 Refrain from anger, and forsake wrath!
Fret not yourself; it tends only to evil.
9 For the evildoers shall be cut off,
but those who wait for the Lord shall inherit the land.
10 In just a little while, the wicked will be no more;
though you look carefully at his place, he will not be there.
11 But the meek shall inherit the land
and delight themselves in abundant peace.