But when it pleased God

Galatians 1:15
But when it pleased God, who separated me from my mother’s womb and called me through His grace.

The phrase to look at here is "But when it pleased God". Often we do things to please ourselves. Even when serving God, there is an element of pleasing ourselves first. Another aspect might be that we are working so that God may be pleased or to please Him. There is nothing wrong with these. However we should remember that sometimes it is not about what we can do. Sometimes it pleases God to make something happen. That is God 's grace and it is something that we should embrace and direct or will towards God's will.