The word Hashem is a Hebrew word meaning, “the Name.” It is not used in the Bible to refer to God; the use in 1 Chronicles 11:34 refers to a person. Instead, it became popular in later times as a way of avoiding saying God’s name to prevent misusing it. Despite that well-meaning restriction, God never forbade the use of His name. On the contrary, He gave it to be spoken and remembered (Exodus 3:15). The name He gave was YHWH. Because speaking it was avoided for so long, the pronunciation was lost. However, most modern scholars think it sounded like “Yahweh.”
When giving His name, God told Moses that “I AM” is sending you (Exodus 3:14). The word for “I AM” is the root of YHWH, meaning that God’s name defines Him as the eternal God. This set Him apart from, and above, every false god. Additionally, by calling Himself “I AM,” YHWH allowed His chosen people to know Him intimately and entered into an eternal relationship with them. In the New Testament, we learn that Jesus is the way to that relationship (John 14:6) and that we must call on His name in order to be saved (Romans 10:13).
God gave His name so that He could form a personal relationship with His creation. This was not because God needed a relationship to be complete—He was perfectly complete within Himself. However, He forms relationships to show how great His love, mercy, and grace are. In short, He gave us His name so that we might know Him and worship Him.
God is holy, which means that He cannot dwell with sin. So, before forming an eternal relationship, He had to deal with sin. This is why He sent His Son, Jesus. Jesus came and lived a perfect life, never sinning even once. Because He is perfect, He did not have to die, but He did so willingly. When He did, the Father punished Jesus for all the sins of those who believe in the name of Jesus.
That act is the foundation for a relationship with God and the only way sinful men and women can enter into a relationship with Him. In order to be saved, we must repent of our sin and confess His name. This is not a formulaic prayer where we say the name of Jesus and then get saved. Rather, it is understanding all that His name represents as God, the sinless human sacrifice, and eternal redeemer. In other words, evidence of true salvation is the ongoing, genuine expression of our trust and faith in His life, death, and resurrection (Romans 10:9–10).