Heb 13:15, Eph 5:20, 1 Thess 5:18, Col 3:17
In the Old Testament, David always praised God even in difficult circumstances. (Psalms 34:1-2)
Psalms 34:1 I will bless the Lord at all times: his praise shall continually be in my mouth. 2 My soul shall make her boast in the Lord: the humble shall hear thereof, and be glad.
Now we must always praise God through Jesus the Christ. (Hebrews 13:15, Ephesians 5:20, 1 Thessalonians 5:18, Col 3:17)
Hebrews 13:15 By him therefore let us offer the sacrifice of praise to God continually, that is, the fruit of our lips giving thanks to his name.
Ephesians 5:20 Giving thanks always for all things unto God and the Father in the name of our Lord Jesus Christ;
1 Thessalonians 5:18 In every thing give thanks: for this is the will of God in Christ Jesus concerning you.
Col 3:17 And whatsoever ye do in word or deed, do all in the name of the Lord Jesus, giving thanks to God and the Father by him.