Seven times (there's that symbolic number "7" popping up in Scripture again) the Psalmist says he will not forget the commandments laws of God...
I have gone astray like a lost sheep;
#1
I will delight myself in thy statutes: I will not forget thy word.
Psalm 119:16
#2
...yet do I not forget thy statutes.
Psalm 119:83
#3
I will never forget thy precepts:
Psalm 119:93
#4
: yet do I not forget thy law.
Psalm 119:109
#5
...yet do not I forget thy precepts.
Psalm 119:141
#6
..for I do not forget thy law.
Psalm 119:153
#7
I have gone astray like a lost sheep;
seek thy servant;
for I do not forget thy commandments.
Psalm 119:176