When you feel frustrated?

Galatians 6:9 (New International Version, ©2011)

⁹ Let us not become weary in doing good, for at the proper time we will reap a harvest if we do not give up.

Philippians 1:6 (New International Version, ©2011)

⁶ being confident of this, that he who began a good work in you will carry it on to completion until the day of Christ Jesus.

Proverbs 16:3 (New International Version, ©2011)

 ³ Commit to the LORD whatever you do,
   and he will establish your plans.

Proverbs 3:5-6 (New International Version, ©2011)

 ⁵ Trust in the LORD with all your heart
   and lean not on your own understanding; ⁶ in all your ways submit to him,
   and he will make your paths straight.

Psalm 37:5 (New International Version, ©2011)

 ⁵ Commit your way to the LORD;
   trust in him and he will do this:

Psalm 37:7 (New International Version, ©2011)

 ⁷ Be still before the LORD
   and wait patiently for him;
do not fret when people succeed in their ways,
   when they carry out their wicked schemes.

Psalm 37:7 (New International Version, ©2011)

 ⁷ Be still before the LORD
   and wait patiently for him;
do not fret when people succeed in their ways,
   when they carry out their wicked schemes.