Contradiction with Joshua 1:9
While Psalms 108:11 questions God's presence, Joshua 1:9 assures His constant companionship and encouragement.
Joshua 1:9: Have not I commanded thee? Be strong and of a good courage; be not afraid, neither be thou dismayed: for the LORD thy God [is] with thee whithersoever thou goest.
Contradiction with Matthew 28:20
Psalms 108:11 expresses doubt about God's help, whereas Matthew 28:20 confirms Jesus’s assurance of being with His followers always.
Matthew 28:20: Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, [even] unto the end of the world. Amen.
Contradiction with Hebrews 13:5
Psalms 108:11 suggests God has cast off His people, but Hebrews 13:5 promises He will never leave nor forsake them.
Hebrews 13:5: [Let your] conversation [be] without covetousness; [and be] content with such things as ye have: for he hath said, I will never leave thee, nor forsake thee.