God is my strength and power,
And He makes my way perfect.
2 Samuel 22:33
The word perfect in 2 Samuel 22:33 is the Hebrew word, tamiym (taw-meem'). It means entire (literally, figuratively or morally), also (as noun) integrity, truth:--without blemish, complete, full, perfect, sincerely, sound, without spot, undefiled, upright, whole.
It comes from the Hebrew word, tamam (taw-mam'), which means to complete.
*Strong, James, LL.D., S.T.D., The New Strong’s Expanded Exhaustive Concordance of the Bible, Red Letter Edition (Expanded With the Best of Vine’s Dictionary of Old & New Testament Words) (Nashville: Thomas Nelson, 2010).