Cheryl

Lin,

The name Jesus means YHWH is salvation. This name was given as an inheritance to Jesus:

Heb 1:3 And He is the radiance of His glory and the exact representation of His nature, and upholds all things by the word of His power. When He had made purification of sins, He sat down at the right hand of the Majesty on high,
Heb 1:4 having become as much better than the angels, as He has inherited a more excellent name than they.

As the Word of God, Jesus was always God but in Philippians we find him humbling himself to also become man.

Philippians 2:11 and that every tongue will confess that Jesus Christ is Lord, to the glory of God the Father.

When we call on the name of Jesus we are calling upon the name of Almighty God YHWH because Jesus as the son of Man has inherited God’s name. When we call upon Jesus as Lord we are admitting that Jesus is the supreme Lord and Sovereign of the universe and this action brings great glory to the Father.