When we grieve, we are not alone, God is with us.

But, I do not want you to be ignorant, brethren, concerning those who have fallen asleep, lest you sorrow as others who have no hope. For if we believe that Jesus died and rose again, even so God will bring with Him those who sleep in Jesus. (1 Thessalonians 4:13-14)

For the LORD has comforted His people, and will have mercy on His afflicted. (Isaiah 49:13)

When you pass through the waters, I will be with you; and through the rivers, they shall not overflow you. When you walk through the fire, you shall not be burned, nor shall the flame scorch you. (Isaiah 43:2)

Blessed are those who morn, for they shall be comforted. (Matthew 5:4)

This is my comfort in my affliction, for Your word has given me life. (Psalm 119:50)