David's
David  (daw-veed')
loving; David, the youngest son of Jesse -- David.

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Psalm of praise
thillah  (teh-hil-law')
laudation; specifically (concretely) a hymn -- praise.

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I will extol
ruwm  (room)
to be high actively, to rise or raise (in various applications, literally or figuratively)

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thee my God
'elohiym  (el-o-heem')
angels, exceeding, God (gods)(-dess, -ly), (very) great, judges, mighty.

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O king
melek  (meh'-lek)
a king -- king, royal.

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and I will bless
barak  (baw-rak')
to kneel; by implication to bless God (as an act of adoration), and (vice-versa) man (as a benefit); also (by euphemism) to curse (God or the king, as treason)

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thy name
shem  (shame)
an appellation, as a mark or memorial of individuality; by implication honor, authority, character -- + base, (in-)fame(-ous), named(-d), renown, report.

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for ever
`owlam  (o-lawm')
concealed, i.e. the vanishing point; generally, time out of mind (past or future), i.e. (practically) eternity; frequentatively, adverbial (especially with prepositional prefix) always

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and ever
`ad  (ad)
a (peremptory) terminus, i.e. (by implication) duration, in the sense of advance or perpetuity (substantially as a noun, either with or without a preposition)New American Standard Bible
A Psalm of Praise, of David. I will extol You, my God, O King, And I will bless Your name forever and ever.

King James Bible
<Psalm of praise.>> I will extol thee, my God, O king; and I will bless thy name for ever and ever.

Holman Christian Standard Bible
A Davidic hymn. I exalt You, my God the King, and praise Your name forever and ever.

International Standard Version
I will speak highly of you, my God and King, and I will bless your name forever and ever.

NET Bible
A psalm of praise, by David. I will extol you, my God, O king! I will praise your name continually!

Aramaic Bible in Plain English
I shall exalt you, my Lord, the King, and I shall bless your Name for an eternity of eternities!

GOD'S WORD® Translation
[A song of praise by David.] I will highly praise you, my God, the king. I will bless your name forever and ever.

King James 2000 Bible
I will extol you, my God, O king; and I will bless your name forever and ever.

Links

Psalm 145:1
Psalm 145:1 NIV
Psalm 145:1 NLT
Psalm 145:1 ESV
Psalm 145:1 NASB
Psalm 145:1 KJV