Unless the Lord build His own house, we labor in vain that build it (Psalm 127:1a)
It is quite a difference between the two, but it is so easy to get them confused - whether we are to build with His help, or whether He is to build through us. Let us seek Him to know and do the latter.
"For other foundation can no man lay than that is laid, which is Jesus Christ. Now if any man build upon this foundation gold, silver, precious stones, wood, hay, stubble; Every man's work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man's work of what sort it is. If any man's work abide which he hath built thereupon, he shall receive a reward. If any man's work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire." ICorthians 3:11-15