He that is our God is the God of salvation - literally, "God is for us a God of salvation." That is, The God whom we worship is the God from whom salvation comes, and who brings salvation to us. It is not a vain thing that we serve him, for he is the only being who can save us, and he will save us.
And unto God the Lord belong the issues from death - The "outgoings" or "escapes" from death. That is, He only can save from death. The Hebrew word means, properly, a going forth, a deliverance; then, a place of going forth as a gate, Ezekiel 48:30; a fountain, Proverbs 4:23. Probably the only idea intended here by the psalmist was, that safety or deliverance from death proceeds solely from God. The sentiment, however, is true in a larger sense. All that pertains to deliverance from death, all that prepares for it, all that makes it easy to be borne, all that constitutes a rescue from its pains and horrors, all that follows death in a higher and more blessed world, all that makes death "final," and places us in a condition where death is no more to be dreaded - all this belongs to God. All this is under his control. He only can enable us to bear death; he only can conduct us from a bed of death to a world where we shall never die.

The issues from death - The going out or exodus from death - from the land of Egypt and house of bondage. Or the expression may mean, Life and death are in the hand of God. "He can create, and he destroy."

[He that is] our God [is] the God of salvation; and unto GOD the Lord [belong] the (p) issues from death.
(p) Even in most extreme dangers, God has infinite ways to deliver his.

He that is our God,.... Or "God for us" (q); is on our side; and is the mighty God, able to save to the uttermost;
is the God of salvation; or "God for salvations" (r); for the obtaining of them for his people, and giving them to them, even of every kind;
and unto God the Lord belong the issues from death; deliverance from it; Christ has abolished it, and him that had the power of it; has delivered himself from it, and will deliver all his people from it, though they become subject to it, as well as from eternal death; for he has the keys of hell and death in his hands. Some render the words, "to God the Lord belong the issues", or "ways unto death" (s); he has various ways of bringing persons to death, of destroying his and his people's enemies; and so Jarchi, Aben Ezra, and Kimchi interpret it; though the following words seem to be opposed to these: the Heathens had a notion that the power of death belonged to God; hence they had a deity called the god of death, "Dites" (t).
(q) "Deus nobis, vel est nobis", Pagninus, Montanus, Vatablus, Piscator. (r) "Deus ad salutes", Pagninus, Montanus, &c. (s) "ad mortem exitus", Pagninus, Montanus; "mille viae laethi", Lucan. (t) Macrob. in Somn. Scip. l. 1. c. 11.

Issues - Escapes or deliverances.