Contradiction with Ecclesiastes 1:11
Ecclesiastes 1:11 suggests that there is no remembrance of former things, contradicting the call to remember God's marvelous works in 1 Chronicles 16:12.
Ecclesiastes 1:11: [There is] no remembrance of former [things]; neither shall there be [any] remembrance of [things] that are to come with [those] that shall come after.
Contradiction with Isaiah 43:18
Isaiah 43:18 advises to forget the former things, while 1 Chronicles 16:12 emphasizes remembering past deeds by God.
Isaiah 43:18: Remember ye not the former things, neither consider the things of old.