The Lord is glorified when His people bless, praise, and acknowledge Him. Such acknowledgement is what humanity was created for. No man can bless the Lord unless they have been made right with God through Christ alone. Only as God has blessed sinners in the heavenly realms (Ephesians 1:3) can they bless the Lord in a manner that pleases Him?

BIBLICAL SUPPORTED SCRIPTURE

Here are some texts that will lead you to understand my conclusions:

And you shall eat and be full, and you shall bless the Lord your God for the good land he has given you. (Deuteronomy 8:10)

Here bless is virtually identical to the word thank or gratefully recognize as the giver of blessing.

Enter his gates with thanksgiving, and his courts with praise!
Give thanks to him; bless his name! (Psalm 100:4)

All your works shall give thanks to you, O Lord, and all your saints shall bless you! (Psalm 145:10)

Bless the Lord, O my soul, and forget not all his benefits. (Psalm 103:2)

Sing to the Lord, bless his name; tell of his salvation from day to day.
Declare his glory among the nations, his marvelous works among all the peoples! (Psalm 96:2–3)

Here bless probably means joyfully announcing all these good things about God. My understanding may not be as yours, but the Spirit of God bears witness with His word.

Bless the Lord, O my soul! O Lord my God, you are very great!
You are clothed with splendor and majesty. (Psalm 104:1)

This psalm begins and ends with “Bless the Lord, O my soul!” This probably means that the psalm is meant as the blessing. Therefore, blessing God means heartily saying things like “God, you are very great!” You are worthy, You are appreciated and the list goes on.

Therefore David blessed the Lord in the presence of all the assembly. And David said: “Blessed are you, O Lord, the God of Israel our father, forever and ever.” (1 Chronicles 29:10)

This is a clear example of what one does when one blesses the Lord: he calls him blessed! The same thing is seen in comparing Genesis 24:27 and Genesis 24:48.

I will bless the Lord at all times; his praise shall continually be in my mouth. (Psalm 34:1)

I will extol you, my God and King, and bless your name forever and ever.
Every day I will bless youand praise your name forever and ever. . . .
My mouth will speak the praise of the Lord, and let all flesh bless his holy name forever and ever. (Psalm 145:1–2, 21)

Praise the Lord! Praise, O servants of the Lord, praise the name of the Lord!
Blessed be the name of the Lord from this time forth and forevermore! (Psalm 113:1–2)

There you see there is nothing wrong in blessing the Lord or saying it. The word of God yesterday with David has been the same with Paul and the same with us and shall be after us. In other words since the prophets of old Bless the name of the Lord it’s fitting and proper for us to do likewise. However, you should not do it with vainglory, profane lips and a deceitful heart filled with anger and hatred. Let us study the Scripture and let the Holy Spirit unfold the truth of His word to us. I bless you my brother and my sister in the Name of the Lord and God I will bless your name at all times and Your prayers shall continually be in my mouth. Amen