Contradiction with Matthew 6:34
This encourages not worrying about tomorrow, but it also highlights living day by day, which might conflict with the broader perspective in Luke 12:29 about worrying.
Matthew 6:34: Take therefore no thought for the morrow: for the morrow shall take thought for the things of itself. Sufficient unto the day [is] the evil thereof.
Contradiction with Philippians 4:6
This advises not to be anxious about anything, aligning with Luke 12:29 rather than contradicting it.
Philippians 4:6: Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God.