Blessed be the name of the Lord
Some prefix the word "saying", as directing to the matter and manner of praising the Lord, and to express themselves thus; "let the name of the Lord be blessed"; honoured, glorified, spoken well of.
From this time forth and for evermore;
from the beginning of time, or as soon as time began, the Lord's name was to be praised, and was praised by the holy angels, who were present at laying the foundation of the earth, ( Job 38:4-7 ) , and all the works of the Lord, in their way, have praised him ever since. Here it may respect the time of penning this psalm, or the time when the persons called upon commenced the servants of the Lord, the time of their conversion; a time of love, life, light, and deliverance, and therefore a time to begin to praise the Lord: or the whole time of the Gospel dispensation, to which this psalm refers; the accepted time and day of salvation, and of the Gentiles glorifying God for his mercy; in which the Lord is to be and is praised, as he will be to all eternity, by angels and glorified saints.