There is none holy as the LORD: for there is none beside thee: neither is there any rock like our God.
—1 Samuel 2:2
What a broad world to roam in, what a sea to swim in is this God and Father of our Lord Jesus Christ. He is eternal. He antedates time and is wholly independent of it. Time began in Him and will end in Him. To it He pays no tribute and from it He suffers no change.
He is immutable. He has never changed and can never change in any smallest measure. To change He would need to go from better to worse or from worse to better. He cannot do either, for being perfect He cannot become more perfect, and if He were to become less perfect He would be less than God.
He is omniscient. He knows in one free and effortless act all matter, all spirit, all relationships, all events. He has no past and He has no future. He is, and none of the limiting and qualifying terms used of creatures can apply to Him.
Love and mercy and righteousness are His, and holiness so ineffable that no comparisons or figures will avail to express it. POG037
I’m overwhelmed when I even try to comprehend Your attributes, Father. I worship You, for there is indeed no God like You. Amen. 
2:2 The first and third lines of this verse are parallel: holy is parallel to rock, and the Lord is parallel to God, with different structure but similar meaning. The formula “there is no … like …” denotes incomparability. Thus, there is none besides you states that there is no absolutely holy being besides the Lord; moreover, only the Lord is God, i.e., “monotheism” is true (see Deut. 4:35; 32:39; 2 Sam. 22:32). “Rock,” a common OT epithet for God (e.g., Deut. 32:4, 15; 2 Sam. 22:2; 23:3), indicates God’s protection and strength. In Ps. 118:22 and Isa. 8:14; 28:16; as well as in 1 Pet. 2:6–8, “rock” has a messianic significance (see note on 1 Sam. 2:10). With “our God,” Hannah speaks as a member of the covenant community, whom she addresses in the next verse.
2:2 rock. A metaphor for God that emphasized His strength and the security of those who trust in Him (see Dt 32:4; Ps 18:1, 2).
2:2 rock. As a metaphor for God, this term is concentrated in poetic passages such as the song of Moses in Deut. 32; the song of David in 2 Sam. 22; Psalms; and Isaiah. The metaphor suggests God’s strength and sovereignty and the security of those who trust in Him. Here the focus is on the uniqueness of the one true God as opposed to false sources of security (cf. false gods, also called “rock,” in Deut. 32:31, 37; Is. 44:8).
 Tozer, A. W., & Eggert, R. (2015). Tozer on the almighty god: a 365-day devotional. Chicago, IL: Moody Publishers.
 Crossway Bibles. (2008). The ESV Study Bible (p. 493). Wheaton, IL: Crossway Bibles.
 MacArthur, J. F., Jr. (2006). The MacArthur study Bible: New American Standard Bible. (1 Sa 2:2). Nashville, TN: Thomas Nelson Publishers.
 Sproul, R. C. (Ed.). (2015). The Reformation Study Bible: English Standard Version (2015 Edition) (pp. 405–406). Orlando, FL: Reformation Trust.